beath /biːð/ verb2 •(dialect) To bathe (with warm liquid); foment.And in his hand a tall young oake he bore, Whose knottie snags were sharpned all afore, And beath'd in fire for steel to be in sted — 1596 •To dry or heat (unseasoned) wood for the purpose of straightening it. formsbeathed · beathing · beaths