Word Study
gringo
CIDE DICTIONARY
gringo, n. [Amer. Sp., fr. Sp. gringo gibberish; cf. griego Greek, F. grigou wretch.].
Among Spanish Americans, a foreigner, especially an American or sometimes an Englishman; -- often used disparagingly or as a term of reproach. [Webster 1913 Suppl.]
OXFORD DICTIONARY
gringo, n. (pl. -os) colloq. a foreigner, esp. a British or N. American person, in a Spanish-speaking country.
Etymology
Sp., = gibberish
THESAURUS
gringo
Uitlander, alien, barbarian, deracine, displaced person, emigre, exile, foreign devil, foreigner, outlander, outlaw, outsider, refugee, stranger, the Wandering Jew, tramontane, ultramontane, wandererFor further exploring for "gringo" in Webster Dictionary Online