παράσημ-ον · parasēm-on — LSJ
marginal mark or note, παράσημα ποιεῖσθαι Arist. SE 177b6.
distinguishing mark, in various senses : ensign of a ship, παρασήμῳ Διοσκούροις with the Dioscuri as the sign or emblem, Act. Ap. 28.11, cf. Plu. Symp. 2.162a ; of a city, Pyth. ib. 399f ; of patricians and plebeians, Id. Cor. 20 ; τὰ τῆς ἡγεμονίας π. Id. Ant. 33 ; τὸ π. ὃ ἐπετίθεντο τῇ κεφαλῇ οἱ τῶν Περσῶν βασιλεῖς Ath. 12.514a, cf. PGnom. 194 (ii A. D.) π. στρατηγικά, = Lat. insignia praetoria, Plu. Sull. 9 ; characteristic mark, τὸ βασιλικὸν τῆς ἐσθῆτος π., i.e. its purple colour, Eun. VS p.4
π. σωματικά birthmarks, Ptol. Tetr. 122, cf. Porph. Gaur. 5.2.
password, Plu. Gen.Socr. 2.598b.