las, v.t. & i. 1. Light. (a)Cipíní, lampa, tine, a ~adh, to light sticks, a lamp, a fire. Níor ~ an gual, the coal did not light. ~ an solas, put on the light. (b)~ sé (suas) an áit, it lit up the place. ~ an sliabh, the mountain blazed. ~ a súile le háthas, her eyes shone with joy. 2. Blush, flush. ~ a aghaidh, his face flushed. Ag ~adh le náire, blushing with shame. 3. Flame, inflame. (a)Mianta a ~adh, to inflame desires. Lit:Ná ~ i ndiaidh a scéimhe, lust not after her beauty. (b)~adh chun feirge, to flare up in anger. ~ sé chugam, he flared up at me. Ná bí ag ~adh fúthu, don’t be inciting them. 4. Med: Inflame. Cneá ag ~adh, a wound becoming inflamed. 5. (Of phosphorescent effect) ~ an t-iasc, the fish surfaced.