- arroyo (n.)
[arroyo 词源字典]
- "watercourse, dry streambed," 1845, a California word, from American Spanish, in Spanish, "rivulet, small stream," from Latin arrugia "shaft or pit in a gold mine," apparently a compound of ad- "to" (see ad-) + ruga "a wrinkle" (see rough (adj.)).[arroyo etymology, arroyo origin, 英语词源]