1520s; from half + moon (n.).
half-hour
half-life
halfling
half-mast
half-measure
half-moon
halfpenny
half-price
half-shirt
half-sister
half-time
)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}