D defs.my
Entry 1 sense Webster, 1913

Alas

/əl-ăs'/ · A·las · IPA /əˈlæs/
01 interj. An exclamation expressive of sorrow, pity, or apprehension of evil; -- in old writers, sometimes followed by day or white; alas the day, li…
  1. 1.
    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.