twain ( tw³n) n. adj. pron. 1. Two. [Middle English tweien, twaine from Old English tw¶gen;See dwo- in Indo-European Roots.]
Twain ( tw³n), Mark . 1. See Samuel Langhorne Clemens .
dwo- . Important derivatives are: two twelve twilight biscuit twist twice twenty twine between twin binary combine twig 1 diploma deuce 1 dozen dual duet double duplicate doubt dubious Two. I. Variant form *duwo . 1. a. TWO , from Old English tw á, two (nominative feminine and neuter); b. TWAIN , from Old English tw ¶gen, two (nominative and accusative masculine). Both a and b from Germanic *twa , two. 2. TWELFTH , TWELVE , from Old English twelf , twelve, and twelfta , twelfth, from Germanic compound *twa-lif- , ? two left (over from ten), ? twelve ( *-lif- , left; see leik w -). II. Adverbial form *dwis and combining form *dwi- . 1. a. TWIBILL , TWILIGHT , from Old English twi- , two; b. ZWIEBACK , ZWITTERION , from Old High German zwi- , twice. Both a and b from Germanic *twi- . 2. BI- 1 , BIS ; BALANCE , BAROUCHE , BEZEL , BISCUIT , from Latin bis (combining form bi- ), twice. 3. DI- 1 , from Greek dis (combining form di- ), twice. 4. TWIST , from Old English -twist , divided object, fork, rope, from Germanic *twis . 5. TWICE , from Old English twige , twiga , twice, from Germanic *twiyes . 6. TWENTY , from Old English tw ¶ntig, twenty, from Germanic compound *tw ¶gentig, ? twice ten ? ( *-tig , ten; see dek ©). 7. TWINE , from Old English tw ºn, double thread, from Germanic *tw ºhna, double thread, twisted thread. 8. BETWEEN , BETWIXT , ( TWIXT ), from Old English betw ¶onum and betweox , betwix , between, from Germanic compounds *bi-tw ºhna and *bi-twisk , ? at the middle point of two ? ( bi , at, by; see ambhi ). 9. TWILL , from Old English twilic , woven of double thread, from Germanic compound *twilic- , ? two-threaded fabric. ? 10. Suffixed form *dwis-no- . a. TWIN , from Old English twinn , getwinn , two by two, twin, from Germanic *twisnaz , double; b. BI- , BINAL , BINARY ; COMBINE , from Latin b ºnº, two by two, two each. 11. Suffixed form *dwi-ko- . TWIG 1 , from Old English twigge , a branch, from Germanic *twig(g)a , a fork. 12. Compound *dwi-plo- , twofold ( *-plo- , -fold; see pel- 2 ). DIPLO- , DIPLOE , DIPLOID , DIPLOMA ; ANADIPLOSIS , from Greek diploos , diplous , twofold. 13. Suffixed reduplicated form *dwi-du-mo- . DIDYMIUM , DIDYMOUS ; EPIDIDYMIS , TETRADYMITE , from Greek didumos , double, the testicles. 14. Suffixed form *dwi-gha . DICHASIUM , DICHO- , from Greek dikha , in two. III. Inflected form *duw ½. 1. DEUCE 1 , DOZEN , DUAL , DUET , DUO , DUO- ; DUODECIMAL , from Latin duo , two. 2. DUAD , DYAD ; DODECAGON , HENDIADYS , from Greek duo , du ½, two. IV. Variant form *du- . 1. Compound *du-plo- , twofold ( *-plo- , -fold; see pel- 2 ). DOUBLE , ( DOUBLET ), DOUBLOON , DUPLE , from Latin duplus , double. 2. Compound *du-plek- , twofold ( *-plek- , -fold; see plek- ). DUPLEX , DUPLICATE , DUPLICITY ; CONDUPLICATE , from Latin duplex , double. 3. Suffixed form *du-bhw-io- . DOUBT , DUBIOUS ; ( REDOUBTABLE ), from Latin dubius , doubtful ( < ? hesitating between two alternatives ?), and dubit ³re, to be in doubt. [ Pokorny d ø½(u)- 228. ]
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