Apparently a prolonged form of a primary verb; to halloo, i.e. Shout (for help or in a tumultuous way) -- cry.
βόησον (boēson) − 1 Occurrence
βοῶντα (boōnta) − 1 Occurrence
βοῶντες (boōntes) − 2 Occurrences
βοῶντος (boōntos) − 4 Occurrences
βοώντων (boōntōn) − 1 Occurrence
ἐβόησεν (eboēsen) − 3 Occurrences