fadaigh1, v.t. & i. 1. (Of fire) Set, kindle. Tine a fhadú, to set a fire. Ag fadú tine faoi loch, doing something to no purpose. 2. Build up, incite. Fadú faoi dhuine, to incite s.o. Ag fadú mioscaise, building up, nursing, spite. 3. Set up, erect. An áit ar fhadaigh sé an stáca, where he erected the stack. Ná ~ air sin, don’t build (your hopes) on that.
fadaigh2, v.i. Lengthen, extend, prolong. Fadú le, ar, rud, to add to sth.