The adjective ἱππικός relates to horses, horsemen, or cavalry—equestrian or pertaining to mounted forces. Revelation 9:16 uses it in describing John's vision: "The number of the mounted troops was twice ten thousand times ten thousand" (τὸ ἀριθμὸν τοῦ στρατεύματος τοῦ ἱππικοῦ). The phrase describes an enormous cavalry force, part of the apocalyptic imagery of judgment. Classical usage applies ἱππικός to horses, horsemen, equestrian training, or cavalry units (as opposed to infantry). The translations consistently render it "cavalry" (English), "caballería" (Spanish), "Reiterei" (German), the mounted military force.