Origin: Hindi nainsukh < nain, the eye + sukh, pleasure
See nainsook in American Heritage Dictionary 4
Origin: From Hindi nainsukh, pleasant
Origin: : nain, eye (from Sanskrit nayanam, from nayati, he leads)
Origin: + sukh, pleasure (from Sanskrit sukha-, running easily (of chariots), pleasant : su-, good; see (e)su- in Indo-European roots + kham, opening, axle-hole in the nave of a wheel).