BE

A prefix, originally the same word as by; joined with verbs, it serves: (a) To intensify the meaning; as, bespatter, bestir. (b) To render an intransitive verb transitive; as, befall (to fall upon); bespeak (to speak for). (c) To make the action of a verb particular or definite; as, beget (to get as offspring); beset (to set around).