alas

Alas \A*las"\, interj. [OE. alas, allas, OF. alas, F. h['e]las; a interj. (L. ah.) + las wretched (that I am), L. lassus weary, akin to E. late. See {Late}.] An exclamation expressive of sorrow, pity, or apprehension of evil; -- in old writers, sometimes followed by day or white; alas the day, like alack a day, or alas the white. [1913 Webster]