From Middle English bike, byke (“a nest of wild bees or wasps; also, honeycomb”), of unknown origin. Perhaps a back-formation of Middle English *bykere (“beekeeper”), from Old English bēocere (“beekeeper”); or from Old English *bȳc, a byform of Old English būc (“belly; vessel; container”). Compare also Scots byke (“beehive, anthill; home, dwelling”), Old Norse bý (“bee”).