gloriosus (of persons and of things; e.g., a letter): vanus (empty; of persons; then of empty things which have a fair appearance): vaniloquus. An ostentatious display of learning, doctrinae suae venditatio quaedam atque ostentatio; (of one’s art and skill), ostentatio artis et portentosa scientiae venditatio (of quackery, Plin., 29, 1, 8, 25).