First attested in 1645; adapted from either French mariner or the earlier attested Italian marinare (“to pickle, marinate”) (see -ate (verb-forming suffix) and -ate (adjective-forming suffix)), from Late Latin marina (“brine, salt water”), short for aqua marina (“sea water”), from Latin marinus (“marine, of the sea”), from Latin mare (“the sea”) from Proto-Indo-European *móri (“the sea”).