Boak Definition

Origin of Boak

• From Middle English bolken (“to vomit, overflow”), from Old English bealcan (“to belch, utter, bring up, sputter out, pour out, give forth, emit, come forth”), from Proto-Germanic *belkaną (“to belch”). Cognate with Dutch balken & bulken (“to bellow”), German bölken (“to roar”). See also belch.

  From Wiktionary