c. 1200, Spainisc, from Spaine "Spain," from Old French Espaigne (see Spaniard) + -ish. Replaced Old English Speonisc. Altered 16c. by influence of Latin. As a noun, "the Spanish language," from late 15c.
For Spanish Main see main. Spanish moss is attested from 1823. Spanish fly, the fabled aphrodisiac (ground-up cantharis blister-beetles), is attested from c. 1600. Spanish-American War was so called in British press speculations early 1898, even before it began in April. For Spanish Inquisition (by c. 1600), see inquisition.
in a Spanish context, "a young Spanish lady;" as a title, "Miss;" 1823, from Spanish señorita, Spanish title corresponding to English "Miss," diminutive of señora (see senora). The Portuguese equivalent is senhorita.
1937, "gunman, gangster," in a Spanish or Spanish-American context, from Spanish, so called from the name of the weapon (compare pistolier).