Lewis Short
jactātor (noun M) : id.
* One who makes an ostentatious display of himself, a boaster, braggart: rerum a se gestarum,Quint. 11, 1, 17: civilitatis,Suet. Claud. 35; Stat. Th. 6, 837; Gell. 18, 4, 1.—Poet., with inf.: ille sub hiberno somnos educere caelo Jactator,he boasts,Sil. 11, 403.
Charlton T. Lewis, Charles Short, A Latin Dictionary