The story
- Old Irish · derived fromúa Lothcháin
- Middle Irish · derived fromuí Leochain
- Irish · borrowed fromÓ Leocháin
- English todayLohan
An anglicization of Irish Ó Leocháin, from Middle Irish uí Leochain, from Old Irish úa Lothcháin.
Etymology from Wiktionary, CC BY-SA 4.0.