—adj. & adv. with one's name or identity kept secret (was travelling incognito).
—n. (pl. -os)
1 a person who is incognito.
2 the pretended identity or anonymous character of such a person.
Etymology: It., = unknown, f. L incognitus (as IN-(1), cognitus past part. of cognoscere know)
Useful english dictionary. 2012.