be- Syllabification: (be-)Definition of be- prefix 1forming verbs: all over; all around:bespatter thoroughly; excessively:bewilder 2(added to intransitive verbs) expressing transitive action:bemoan 3(added to adjectives and nouns) expressing transitive action:befool befriend 4(added to nouns) affect with:befog (added to adjectives) cause to be:befoul 5(forming adjectives ending in -ed) having; covered with:bejeweledOrigin: Old English, weak form of bī 'by'be- in other Oxford dictionaries Definition of be- in the British & World English dictionary