Nay
来自Big Physics
Middle English (in nay (sense 2 of the adverb)): from Old Norse nei, from ne ‘not’ + ei ‘ever’ (compare with aye2).
wiktionary
From Middle English nai, nei, from Old Norse nei(“no”), contraction of ne(“not”) + ei(“ever”), itself from Proto-Germanic *nai(“never”), *nē(“not”). More at no.
etymonline
nay
word of negation or refusal, "no" as a reply to a question, late 12c., from a Scandinavian source such as Old Norse nei, compound of ne "not" (from PIE root *ne- "not") + ei "ever," from Proto-Germanic *aiwi-, extended form of PIE root *aiw- "vital force, life; long life, eternity."
