"very dark reddish-brown color," 1791, from French couleur marron, the color of a marron "chestnut," the large sweet chestnut of southern Europe (maroon in that sense was used in English from 1590s), from dialect of Lyons, ultimately from a word in a pre-Roman language, perhaps Ligurian; or from Greek maraon "sweet chestnut."

"put ashore on a desolate island or coast," 1724 (implied in marooning), earlier "to be lost in the wild" (1690s); from maron (n.) "fugitive black slave in the jungles of W.Indies and Dutch Guyana" (1660s), earlier symeron (1620s), from French marron, said to be a corruption of Spanish cimmaron "wild, untamed," from Old Spanish cimarra "thicket," probably from cima "summit, top" (from Latin cyma "sprout"), with a notion of living wild in the mountains. Related: Marooned.