BELLICOSE Meaning of BELLICOSE in English [ 'bɛlɪkəʊs ]■ adjective aggressive; ready to fight.Derivativesbellicosity -'kɒsɪti noun OriginME: from L. bellicosus , from bellicus 'warlike', from bellum 'war'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004