From Wiktionary, the free dictionary
a cavallo [with di]
- on the back of (a draft animal, typically a horse); on horseback
- Synonyms: in groppa, in sella
- a cavallo di un mulo ― on muleback (literally, “on the back of a mule”)
- andare a cavallo ― to ride on horseback
- astride
- Synonym: a cavalcioni
- sedere a cavallo di una sedia ― to straddle a chair (literally, “to sit astride on a chair”)
- (idiomatic) around (a time period or place); at the turn (of)
Fu a cavallo del decimo secolo.- It was at the turn of the tenth century.
Si trova a cavallo della valle.- He is around around the valley.
