Cavalry

google

ref

mid 16th century: from French cavallerie, from Italian cavalleria, from cavallo ‘horse’, from Latin caballus .

wiktionary

ref

From Middle French cavalerie, in turn from Italian cavalleria. Recorded in English from the 1540s. Doublet of chivalry.

etymonline

ref

cavalry (n.)

"soldiers who march and fight on horseback," 1590s, from French cavalerie (16c.), from Italian cavalleria "mounted militia," from cavaliere "mounted soldier" (see cavalier (n.)). An Old English word for it was horshere.