Definition of alleleu in English:

alleleu

(also aililiú)

exclamation

rareIrish
  • Expressing distress, horror, surprise, etc.

Origin

Late 17th century (in an earlier sense). Apparently from Irish aililiú, interjection indicating surprise or sorrow (although this is first attested later: 1740 or earlier), of imitative origin.

Pronunciation

alleleu

/ˌalɪˈluː/