occipital
‘of, relating to, or situated in or on the occiput or back part of the head’
Lexical development traced from the Tamil root:
E. occipitall, occipitalle < F. occipital < Med.Lat. occipitalis < Lat. occiput ‘back of the skull’ < ob ‘in the way of, against’ + caput ‘head’ < sipuht < kaput- < Tamil kappu