1. (n.) A prefix, originally the same word as by;

2. (n.) To intensify the meaning; as, bespatter, bestir.

3. (n.) To render an intransitive verb transitive; as, befall (to fall upon); bespeak (to speak for).

4. (p. p.) To make the action of a verb particular or definite; as, beget (to get as offspring); beset (to set around).