Definition of zythum in US English:

zythum

noun

  • In ancient Egypt: a kind of malt beer.

Origin

Early 17th century; earliest use found in Edward Topsell (d. 1625), Church of England clergyman and author. From classical Latin zȳthum from Hellenistic Greek ζῦθος, of unknown origin.

Pronunciation

zythum

/ˈzʌɪθəm/