Infra

·adv Below; beneath; under; after;

— often used as a prefix.

infra
infrā [infer, inferă, sc. parte], adv. and prep. I Adv., on the under side , below , underneat...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
infra
īnfrā (1) adv.for inferā, sc. parte, on the under side, below, underneath : infra nihil est nisi m...

An Elementary Latin Dictionary