harden.1v.tr.aCruaim (iarann, na matáin). To harden s.o. to fatigue, duine a thuaradh le obair chrua. To harden s.o.'s heart, croí duine a chruachan. bMetall: Screamhchruaim. cPhot: Siocaim (claonchló). 2v.i.a(Of substance) Siocann, cruann. His voice hardened, tháinig faobhar ar a ghlór. bPrices are hardening, tá na luachanna ag fanacht in airde.