ni

I

not, Irish ní, Old Irish ní, ni, Welsh ni: *nei; Old Latin nei, Latin ni-, nê; Old H.German ni, German nein; Old Slavonic ni, neque; Zend naê; Greek $$Gnc-. Thurneysen says *ne-est = *nést, Celtic níst, nìs, ni h- non-aspirating.

II

a thing, Irish nidh, Old Irish ní, res, probably a curtailed form of Old Irish aní, id quod, from the art.neut. and the pronominal suffix ei, which Zimmer compares to Gothic ei, that (conj.), sa-ei, that-ei, which is either the locative of pronominal o- (Greek $$Gei$$', Indo-European ei-so, this here), or the particle seen in Greek $$Gou$$`tos-í (i long), an instrumental of Latin is, Gaelic e, he. Some have regarded ni as from *gnithe, factum, which See in ní, will do.