Sacro-

·- A combining form denoting connection with, or relation to, the sacrum, as in sacro-coccygeal, sacro-iliac, sacrosciatic.

sacro
să_cro, āvi, ātum, 1, v. a. [sacer], to declare or set apart as sacred; to consecrate, dedicate, or ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
sacro
sacrō āvī, ātus, āre sacer, to set apart as sacred, consecrate, dedicate, devote : agrum: praedam,...

An Elementary Latin Dictionary