Meaning

adjective traveling on horseback

adverb on the back of a horse

originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-)der. English a- Proto-Indo-European *ḱers- Proto-Indo-European *-ós Proto-Indo-European *ḱr̥sós? Proto-Indo-European *h₁wers-? Proto-Indo-European *wers- Proto-Indo-European *-ḗn Proto-Indo-European *wérsēn Proto-Indo-Iranian *(w)ŕ̥šā Proto-Iranian *(w)ŕ̥šāder.? Proto-Germanic *hrussą…

Etymology from Wiktionary, CC BY-SA 3.0