1911 Encyclopædia Britannica/Jennet
JENNET, a small Spanish horse; the word is sometimes applied in English to a mule, the offspring of a she-ass and a stallion. Jennet comes, through Fr. genet, from Span. jinete, a light horseman who rides à la gineta, explained as “with his legs tucked up.” The name is taken to be a corruption of the Arabic Zenāta, a Berber tribe famed for its cavalry. English and French transferred the word from the rider to his horse, a meaning which the word has only acquired in Spain in modern times.