ever: [OE] For such a common and longestablished word, the origins of ever are surprisingly obscure. It has no relatives in other Germanic languages, so it must be a purely English creation. Its first element probably comes from Germanic *aiwō (which is also represented in English aye ‘ever’ [12] and either, and is related to Latin aevum ‘age’, source of English eternal).
The second element is a puzzle, though. Candidates that have been put forward include Old English feorh ‘life’ (thus, ‘ever in life’) and Old English byre ‘occasion’ (giving the underlying sense ‘on any occasion’). Never was formed in the Old English period with the negative particle ne. => aye, either, eternal
