Asiatic wild ass, mid-14c., from Latin onager, from Greek onagros, from onos "ass, she-ass" (related to Latin asinus, but the ultimate source is unknown; see ass (n.1)) + agrios "wild," literally "living in the fields," from agros "field" (from PIE root *agro- "field").
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}