Words related to *mori-
"large, black swimming and diving bird," early 14c., cormeraunt, from Old French cormarenc (12c., Modern French cormoran), from Late Latin corvus marinus "sea raven" + Germanic suffix -enc, -ing. The -t in English probably is from confusion with words in -ant. See corvine + marine (adj.). The birds are proverbially voracious, hence the word was applied to greedy or gluttonous persons (1530s).
"seaman, sailor, one who directs or assists in navigating a ship," mid-13c., from Anglo-French mariner, Old French marinier "seaman, sailor" (12c.), from Medieval Latin marinarius "sailor," "of the sea, maritime," from Latin marinus "of the sea," from mare "sea, the sea, seawater," from PIE root *mori- "body of water." Earlier and long more common than sailor. A sailor also could be a brimgeist in Old English.
1540s, "of or pertaining to the sea," from French maritime (16c.) or directly from Latin maritimus "of the sea, near the sea," from mare (genitive maris) "sea" (from PIE root *mori- "body of water") + Latin ending -timus, originally a superlative suffix (compare intimus "inmost," ultimus "last"), here denoting "close association with." Maritimes "seacoast regions of a country" is from 1590s; specifically of the southeasternmost provinces of Canada adjoining the Atlantic Ocean by 1921.