来自中古法语 roan,红褐色，红棕色，可能来自西班牙语 roano,红褐色，最终来自 PIE*reudh, 红色，词源同 red,russet.字母 d 脱落，拼写比较 rotund,round.用以形容毛色斑杂的动物，特别 是马。
英文词源
roan (adj.)
1520s, from Middle French roan "reddish brown," perhaps from Spanish roano, from Old Spanish raudano, probably from a Germanic source (compare Gothic raudan, accusative of rauðs "red"). Chiefly of horses.
双语例句
1. Come across the bastard on a roan heading south.
正遇上那混蛋骑着一匹杂色马向南走.
来自电影对白
2. He had just bought a roan for a song.
他刚刚买到一匹菊花红棕马,价钱极便宜.
来自互联网
3. Jump in, there is roan for one more person in the car.