Brown-Driver-Briggs (BDB)
H369
H369 אַ֫יִן , אָ֑֫יִן cstr. אֵין subst . prop. nothing , nought . to nothing , as nothing . cstr. אֵין , very freq. as particle of negation , is not , are not , was not , were not . אֵין לְ׳ , with subst., or pron., there is (was) not to … = … have , has , had , etc. not . in circumst. clauses . with inf. and ל׳ , it is not to … . with prefixes
Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain