either
UK /ˈaɪ.ðə/ · US /ˈaɪ.ðɚ/ determiner, pronoun, adverb, conjunction
- determiner Any one (of two). “You can have it in either colour.”
- determiner Each of two; both. “There is a locomotive at either end of the train, one pulling and the other pushing.”
- determiner (often proscribed) Any one (of more than two).
- pronoun One or the other of two people or things. “He made me two offers, but I did not accept either.”
- pronoun (obsolete) Both, each of two or more.
- adverb (conjunctive, after a negative) As well. “I don't like him, and I don't like her either.”
- conjunction Introduces the first of two (or occasionally more) options or possibilities, the second (or last) of which is introduced by “or”. “Either you eat your dinner or you go to your room.”
Synonyms
Etymology
From Middle English either, from Old English ǣġhwæþer, from Proto-West Germanic *aiw + *gahwaþar. Akin to Old Saxon eogihwethar, iahwethar (Low German jeed); Old Dutch *iogewether, *iowether, *iother (Dutch ieder); Old High German eogihwedar, iegihweder, ieweder (German jeder).
The pronunciations with /iː/ and /eɪ/ respectively reflect Middle English forms in /ɛː/ and /æi/; the origin of that with /aɪ/ is less clear, but it may reflect a Middle English form with /iː/; see Middle English either for more discussion.
Webster’s 1913
- adjective One of two; the one or the other; --properly used of two things, but sometimes of a larger number, for any one. Lepidus flatters both, Of both is flattered; but he neither loves, Nor either cares for him. Shak.
- adjective Each of two; the one and the other; both; --formerly, also, each of any number.
- conjunction precedes two, or more, coördinate words or phrases, and is introductory to an alternative. It is correlative to or. Either he is talking, or he is pursuing, or he is in a journey, or peradventure he sleepeth. 1 Kings xviii. 27.
Etymology [OE. either, aither, AS. , (akin to OHG. , MHG. iegeweder); a + ge + hwæ whether. See Each, and Whether, and cf. Or, conj.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “either”, CC BY-SA 4.0. Details