From Foclóir Gaedhilge agus Béarla, 1927, by Patrick Dinneen:
Cathughadh, -uighthe, m., act of fighting, rebelling against (re); act of sorrowing; sorrow, contrition; temptation, trial; mo ch. é, alas! I grieve because of it; c. do dhéanamh, to fight; longing; hankering (=caitheamh); c. i ndiaidh (g.), a hankering after (N. Con); c. do chur ar, to tempt; ná léig sinn i gcathuighibh, “lead us not into temptation”; cath, pl., cathaí, id.
Cáthughadh, m., act of befriending (Meath); cf. cátha.