nates(n = noun.body) arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush - the fleshy part of the human body that you sit on; "he deserves a good kick in the butt"; "are you going to sit on your fanny and do nothing?"
is a kind of body part
is a part of body, torso, trunk

1.  The buttocks. [1913 Webster]

2.  The umbones of a bivalve shell. [1913 Webster]

nates, n.pl. Anat. the buttocks.

Etymology:
L