सनक

Etymology 1
.

Proper noun

 * 1) one of the  and sons of Brahmā (the other 3 being - sanandan, sanātan, and sanatkumār)

Etymology 2
From.

Noun

 * 1) whim, eccentricity
 * 2) obsession, craze, frenzy

Etymology
From.

Adjective

 * 1) old, ancient, former