Rocinante

Don Quixote's horse, in the novel Don Quixote by Miguel de Cervantes Saavedra.

Rocín means "nag" (a low-grade horse). The suffix -ante means "great" or "best", and as the narration of the novel states at the beginning of the book, when Don Quixote thinks of a name to give to his steed in order to set out on his adventures, he chooses Rocinante to establish it as the "best among nags".

Also the name of John Steinbeck's modified camper truck in which he travelled the country in his book