troisgim
Definitions (by source)
I fast; troisg an corghas, observe the lenten fast, 3109; trosgadh, fast, 3382, gein. -aidh, 4087, 6358, troisgthe, 3385, 6360, 6432, troisg(th)e, 2676, trosgthe, (sic), 3110; agus féach anam.
Scáthán Shacramuinte na hAithridhe. Editor: Cainneach Ó Maonaigh O.F.M.
I fast, 9023; pret. 8373; pass. –thear, 8295; -fidhe, 8296
Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Editor: Osborn Bergin.