[Sp. caballero knight, gentleman = F. chevalier, It. cavaliere:L. caballārius horseman, f. caball-us horse.] A (Spanish) gentleman.
[1749. Fielding, Tom Jones, X. ii. This gentleman was one of those whom the Irish call a calabalaro, or cavalier.]
1877. W. H. G. Kingston, Yng. Llanero, 122. Now go, young caballero, and bring him here.
1878. Lady Herbert, trans. Hübners Ramble, I. xii. 192. He is a mixture of a caballero and an ascetic Castilian.