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Origin and history of twelfth

twelfth(adj., n.)

"next in order after the eleventh," also an ordinal numeral; "being one of twelve equal parts into which a whole is regarded as divided;" late 14c., with -th (1), altering Middle English twelfte, from Old English twelfta, from twelf (see twelve). The earlier form is cognate with Old Norse tolfti, Danish tolvte, Old Frisian twelefta, Dutch twaalfde, Old High German zwelifto, German zwölfte .

As a noun meaning "a twelfth part," from 1550s. Twelfth Night is Old English twelftan niht, the eve of Epiphany, which comes twelve days after Christmas, formerly an occasion of social rites and a time of merrymaking.

also from late 14c.

Entries linking to twelfth

twelve(num.)

"1 more than eleven, twice six; the number which is one more than eleven; a symbol representing this number;" Old English twelf "twelve," literally "two left" (over ten), from Proto-Germanic *twa-lif-, a compound of *twa- (from PIE root *dwo- "two") + *lif- (from PIE root *leikw- "to leave").

Compare eleven. Cognate with Old Saxon twelif, Old Norse tolf, Old Frisian twelef, Middle Dutch twalef, Dutch twaalf, Old High German zwelif, German zwölf, Gothic twalif. Outside Germanic, an analogous formation is Lithuanian dvylika, with second element -lika "left over." The number of the Apostles, the Tribes of Israel, the zodiac signs, and the labors of Hercules.

-th(1)

word-forming element making ordinal numbers (fourth, tenth, etc.), Old English -ða, from Proto-Germanic *-tha- (cognates: Gothic -da, -ta, Old High German -do, -to, Old Norse -di, -ti), from PIE *-to-, also *-eto-, *-oto-, suffix forming adjectives "marking the accomplishment of the notion of the base" [Watkins].

Cognate with Sanskrit thah, Greek -tos, Latin -tus; Sanskrit ta-, Lithuanian and Old Church Slavonic to, Greek to "the," Latin talis "such;" Greek tēlikos "so old, of such an age," Old Church Slavonic toli "so, to such a degree," toliku "so much," Russian toliko "only;" also see -ed.

Physicists coined zeroth by 1896, in describing functions, "coming before the first."

*dwo-

Proto-Indo-European root meaning "two."

It might form all or part of: anadiplosis; balance; barouche; between; betwixt; bezel; bi-; binary; bis-; biscuit; combination; combine; deuce; deuterium; Deuteronomy; di- (1) "two, double, twice;" dia-; dichotomy; digraph; dimity; diode; diphthong; diploid; diploma; diplomacy; diplomat; diplomatic; diplodocus; double; doublet; doubloon; doubt; dozen; dual; dubious; duet; duo; duodecimal; duplex; duplicate; duplicity; dyad; epididymis; hendiadys; pinochle; praseodymium; redoubtable; twain; twelfth; twelve; twenty; twi-; twice; twig; twilight; twill; twin; twine; twist; 'twixt; two; twofold; zwieback.

It might also be the source of: Sanskrit dvau, Avestan dva, Greek duo, Latin duo, Old Welsh dou, Lithuanian dvi, Old Church Slavonic duva, Old English twa, twegen, German zwei, Gothic twai "two;" first element in Hittite ta-ugash "two years old."