à cheval

[ a shuh-val; English ah shuh-val ]
/ a ʃəˈval; English ˈɑ ʃəˈvæl /

French.

by horse; on horseback.

British Dictionary definitions for a cheval

à cheval
/ French (a ʃəval) /

adverb

(of a bet, esp in roulette) made on two adjacent numbers, cards, etc

Word Origin for à cheval

literally: on horseback