καίω
I. "to light, kindle", πυρὰ πολλά Il.; πῦρ κῆαι Od.; Mid., πῦρ κήαντο "they lighted them" a fire, Hom.:—Pass. "to be lighted, to burn", Il., Hdt., etc.
II. "to set on fire, burn up, burn", Hom.
2. "to burn, scorch", of the sun, Hdt.:—also of extreme cold (as Virg. "penetrabile frigus adurit"), Xen.
3. Pass., of fever-heat, "to be burnt or parched up", Thuc.: metaph. of passion, Pind., etc.
III. "to burn and destroy" (in war), τέμνειν καὶ κ., κ. καὶ πορθεῖν to waste "with fire" and sword, Xen.
IV. of surgeons, "to cauterise", τέμνειν καὶ κάειν to use knife and "cautery", Plat., Xen.