Cavalcade, cavalry, and chivalry all come from Latin slang for "pack-horse" — the informal word that defeated the classical equus and conquered every Romance language.
A formal procession of people on horseback, in vehicles, or on foot. A series or succession of notable events or things.
From French cavalcade, from Italian cavalcata (a ride on horseback), from cavalcare (to ride), from Late Latin caballicare (to ride a horse), from Latin caballus (horse, pack-horse) Key roots: caballus (Latin: "horse, pack-horse"), caballicare (Late Latin: "to ride a horse").