Supercilium | Webster's Dictionary of the English Language

supercilium
sŭper-cĭlĭum, ii, n. [super and root kal-; Gr. καλύπτω; Lat. celāre, to hide, cover; cf. Gr. κύλον, ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
supercilium
supercilium ī, n 2 CAL-, an eyebrow : supercilia abrasa: superiora superciliis obducta: duris torv...

An Elementary Latin Dictionary