Definition of marrube in US English:

marrube

(also marrub)

noun

obsolete, rare
  • The plant white horehound, Marrubium vulgare.

Origin

Late Middle English; earliest use found in Agnus Castus. From Middle French marube or its etymon classical Latin marrubium Marrubium.

Pronunciation

marrube

/maˈruːb/