incognito
‘unknown, with concealed identity’
Lexical development traced from the Tamil root:
Ital. incognito ‘unknown’ < Lat. incognitus ‘unknown, not investigated’ < in- ‘not, opposite of, without’ + cognitus < Lat. cognoscere ‘to get to know, recognize’ < com ‘together’ + gnoscere ‘to know’ < kuhg < gno- < Tamil kaṇ