For many years word buffs at these laboratories have made a game out of finding words which contain strange digrams (pairs of letters side-by-side). The problem, as originally posed by M.D. McIlroy, was to complete a table with 26 rows and 26 columns, labeled by the letters A, B, ... , Z. The space where row L crossed column L\u27 was to be filled by a word containing the digram LL\u27

Gilbert, E. N.

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cow wi th cowquake roots. n this and are on nerin :rican. lution. 19ue­Bryan 215 The Digrams of Websters Unabridged Dictionary E. N. GILBERT Bell Telephone Laboratories, Incorporated Murray Hill, New Jersey For many years word buffs at these laboratories have made a game out of finding words which contain strange <:Iigrams (pairs of letters side-by-side) . The problem. as originally posed by M. D. McIlroy, was to complete a table with 26 rows and 26 columns, labeled by the letters A, H, ... , l. The space where row L crossed column L' was to be filled by a word containing the digram LL'. Of the 626 ( = 26X 26 ) words needed, about 80% are easy to find. Each of the others presents a difficult puzzle and some must be impossible under any reasonable rules for deciding what words are allowable. The rules adopted here accept only words from the second edition of Webster's unabridged dictionary, spelled without a capital letter, without a hyphen, and without the sign II by which Webster denotes words in foreign languages. The word may be listed as an archaic form (below the line at the bottom of the page), as a recent word (in the addendum), or as an alterna te spelling. A. Ross Eckler and Faith W. Eckler used different rules for their trigram table, now being serialized in Word Ways. Our rules are more permissive in using a larger dictionary but also less p~rmissive in rejecting -'3~~ hyphenated words and neologisms. Although our '~~C\r" rules are natural ones they dictate peculiar choices for a~S certain digrams. Thus, for the digram lB, the rules' -reject buzz bomb (two words) and whizz-bang (hyphen­ated) but allow ezba and blitzbuggy. For the digram LJ, aljoba is acceptable (although it is below the line) but aljama is rejected as a foreign word; kill-joy (hyphen­ated) is also rejected. For the digram Ml, lemzem (capitalized is forbidden but larnziekte is acceptable). The only known word for the digram Fl is alefzero, which appears in the definition of alef null as an alter­nate form. Likewise the only known word with digram PQ -is upquiver, which Webster includes in a list of words with prefix up- but does not define. THE JOURNAL OF RECREATIONAL LINGUISTICS 216 THE DIGRAMS OF WEBSTER'S UNABRIDGED DICTIONARY Clearly one can criticize rhese rules. However, one must adopt some authority I arelike Webster to settle any argument about what words are allowed. Without areWebster's restraint it is tempting to invent new compound "words" (like offkey limfor the rare digram FK) which are not single words at all. Having agreed on notWebster it is then disheartening to find a good ZM word, omiqueezmadam, spelled without a hyphen in Funk and Wagnall gav.but with a hyphen in Webster. QVThe digram table is complete. Wherever the table fails to 9..0ph Bgive a word, the reason is that no allowable word exists with that fordigram. We now know exactly which digrams can appear be­tioncause of a study,· made at RCA, in which an electronic com­mu;puter sorted through all the words of Webster's second edition. b..u tIt listed all the different tetragrams it found (but not words containing them). Although I have only the tetragram list with no explanation to go with it, the list seems to cover exactly the same words which are allowed for the table. In the tetragram list the word space # counts as a letter (thus the word "for" contributes the tetragrams # # #f, # #fo, #for, for#, ABC madam eating ..0or##, r### to the list). EIf a digram occurs at all it occurs at the Fbeginning of some tetragram. Thus to test GHI J KLMN o p whether a rare digram, say KX, occurs one need only consult the list for tetragrams beginning KX. The only such tetragram listed is KXIA. This proves that there is such a word. Furthermore by looking for tetragrams # KXI, AKXI, ... , ZKXI one finds only CKXI listed. Then the word sought contains the pentagram CKXIA. Continuing in this way one finds that the word contains ICKXIA. However, there Q Rare so many tetragrams like #ICK, HICK, S T PICK, SICK, etc. that the table is not help­ful in supplying more letters. Indeed the Uqueez- madam-KX word was the last one found: D. Borg­mann contributed the word kickxia. VWX Y Z ABCDE • R. B. Thomas, M. Kassler, and G. Wooley, Advanced character recognition techniques study, report No.4, Appendix D. Tetragrams legal with respect 10 Webster's International Dictional)' (Unabridged second edition). U.S. Army Electronics Research and Develop. ment Laboratory, Fort Monmouth and RCA Data Systems Center, Bethesda. Contract No. DA ~6-039-AMC-001l2(E), (1963). WORD WAYS 1 ority hout ,ffkey d on vord, gnall Is to that be­rTH.E DIGRAMS OF WEBSTER'S UNABRIDGED DICTIONARY 217 In the table which follows, the digrams which have no corresponding words are indicated by XXX. A few words are marked with an asterisk to show that they are obscure forms which Webster put below the line. Conclusions based on the tetragram list may not be absolutely reliable. For instance the list omitted the common tetragram #BE#. It also gave no tetragram beginning QV although I find QVINT below the line in Webster. By relaxing the rules slightly one can find words for some of the "impossible" digrams. Other dic- f u z zmobile com­tion. lords tionaries contain words like avgas, tradevman, and muzjik. Proper names, foreign words, or hyphenated words would supply bp.t one ought to stop short of allowing names of radio stations. more , the TABLE the A. B c D E ABCD aardvark cab act add' aerie bat ebb abcess abduct be car ecbatic occur ecdysis ace dam bedbug madcap odd den zebra echo edit seeE eat F fat surfboard of/cast serfdom fee G gas bugbear dogcart k.ingdom get HI ham washbowl ashcake touchdown hen bias bib pick did hie J jar rajbansi xxx slojd jet KLMN kale sickbed blackcap jackdaw keep law bulb gulch old let man climb tomcat humdrum men" nail sunbath once end new rob lock ode hoeo oat pQ pan cupboard stopcock snapdragon pet qasab· xxx xxx xxx qere· orb arc hard areR ran sat misbehave scan disdain setS T tan football itch letdown tea UV W squad tub such bud hut van xxx novcic x.xx over war sawbuck showcase bawdy we exact oxblood excel sexdigital axe )'am maybe cycle hydra yes X y Z zany blitzbuggy mezcal benzdiazine zero IHGF J aft age ah aIm ajar subfloor subgroup abhor bin object ABiqueJ ional xxxC frolicful ecgonize chin acid DE codfish edge adhere din adjoin Ie ft beg behind lei reject THE JOURNAL OF RECREATIONAL LINGUISTICS 'elop­t No. 218 THE DIGRAMS OF WEBSTER'S UNABRIDGED DICTIONARY TABLE (continued) F offer afghan offhand fin G songful egg light gin H wishful thoroughgoing withhold hid I if dig likelihood skiing J xxx xxx jhow jIb K hackfire blackguard khaki kin L self bilge jailhouse lid M chamfer armgaunt drumhead mix N enfold ring enhance nip 0 of bog oh oil p tOpfull upgrade graph pin Q xxx xxx xxx qintar-R scarf urge rhyme rid S misfire disgorge she sit T catfish catgut the tin U buff hug uhlan suit V xxx xxx xxx vine W awful gewgaw why win X exfoliate foxglove exhale exit y crayfish pygmy anyhow eying Z topazfels fizgig muzhik zip K L M N A rake ale am an B lambkin blue submit hobnail C back clip acme acne D bodkin idle admit hardness E eke elf hem end F elfkin fly hafnium hafnium G gingko glue dogma gnu H latchkey highly coachman ethnic I like in dim In J sa tlijk­ mijl­ ijma jllana K bookkeeper fickle jackman knot L elk all elm kiln M bumkin­ gimlet hammer hymn N hank inlay enmesh winner 0 poke old home on P napkin plan helpmate pneuma Q xxx xxx xxx xxx R ark pearl arm turn S ski isle smut snub T catkin battle allotment catnip U auk hull bum tune V sovkhoz vlei xxx grivna W squawk awl sawmill own X boxkeeper axle axman laxness y tyke style rhyme dyne Z blitzkrieg siule mizmaze haznadar WORD WAYS field longjaw mahjongg demijohn hajj blackjack. aljoba­jimjam enjoy sojourn flapjack xxx doorjamb misjudge night jar jujube xxx plowjogger xxx pyjamas xxx 0 aorta boat cot do eon for go hot riot joy lookout lot mood no too pot qoph­rob son to buoy vow won axon you zoo A B C D E F G H I J K L M N 0 P Q R S T U V W X y Z A B C D E F G H I J K L M N 0 p Q R S T ,aw ;ongg :john ijack la· LID lrn lck iamb Jdge tjar :>e jogger .nas Jt THE DIGRAMS OF WEBSTER'S UNABRIDGED DICrrONARY 219 TABLE (continued) p Q R S T A ape aquatic are as at B subpoena subquintuple brat absolve debt C ecphonesis acquit crab facsimile act D midparent headquarters draw adsorb hardtack E kept equal erg best bet F halfpenny xxx free offset aft G magpie xxx grow songster springtime H dishpan earthquake shrub fuchsia yacht I lip liquid rre IS it J xxx xxx bolra· xxx mujtahid K cockpit xxx okra locksmith cocktail L help catafalque already else belt M imp kumquat ramrod flimsy warmth N henpeck inquire inroad inside ant 0 open loquacious or lost pot P apple upquiver pray psalm apt Q xxx zaqqum miqra xxx xxx R harp tm-que err purse art S spot squid misread boss star T postpone heart quake try outset attic U U? tuque urge us but V xxx xxx chevron per<ivskite xxx W kewpie cowquake· wren dowse kowtow X expect exquisite ex radius coxswain extra y type triptyque pyre cyst rhythm Z benzpinacone xxx arzrunite vammaZJa azteca U V W X y Z A aura cave awe axe say maze B burn obvious cobweb xxx by subzero C cut xxx cwm xxx cyst eczema D dun adventt:re dwell xxx lady adze E neuter eve few hex eye fez F fun arfvedsonite halfwit xxx defy alefzero G gun dogvane wigwam xxx gyp zigzag H hut ashvamheda pathway xxx why makhzan I diurnal live kiwi radix biyearly fizz J jut xxx xxx xxx iynx xxx K skull kvass inkwell kickxia sky xxx L luck solve hallway calx silly colza M mud triumvirate tramway xxx my lamziektp. N nut envy unwed lynx any frenzy 0 out rove how ox boy doze p put hopvine upward xxx pyre xxx Q queer qvint· xxx xxx xxx xxx R 1'un nerve [oT!uarc. a1'X awry furze S sun svelte swift xxx easy grosz T tub zemstvo two postxyphoid type pretzel THE JOURNAL OF RECREATIONAL LINGUImCS 220 THE DIGRAMS OF WEBSTER'S UNABRIDCED DICTIONARY U vacuu,m louver ahluwaral crux buy puzzle V vue flivver xxx xxx gravy evzone W swum xxx yellowwood xxx screwy frowzy X exude exvoto boxwood xxx xylophone exzodbcal y yule wyvern wayworn onyx sayyid syzygy Z 2zure mitzvah zweiback xxx crazy muzzle ApF In tl mysl estir squa Fi of F E whil sam B to r SAF don WORD WAYS 

The Digrams of Webster\u27s Unabridged Dictionary

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The Digrams of Webster\u27s Unabridged Dictionary

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