fóin1, v.i. (pres. fónann, vn. fónamh, pp. fónta).Serve, be of use (do, to); avail, benefit. Fónamh do dhuine, to serve s.o. A Dhia dá bhfónaim! O, God above me! Má fhónann sé duit, if it suits you. D’fhónfadh bia maith dóibh, good food would benefit them. Ní fhónfaidh an leithscéal sin duit, that excuse won’t do you. Fad is a mhairfidh sé fónfaidh sé, it will serve its purpose while it lasts.