Proto-Indo-European root meaning "be aware, make aware."

It forms all or part of: beadle; bid; bo tree; bode; Bodhisattva; Buddha; forbid; foreboding; ombudsman; verboten.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit bodhati "is awake, is watchful, observes," buddhah "awakened, enlightened;" Old Church Slavonic bljudǫ "to observe;" Lithuanian budėti "to be awake;" Old Irish buide "contentment, thanks;" Old English bodian "proclaim, announce; foretell," boda "messenger."