BT Ket 67b(39)var. :הוה קא מקליין/מיכיבן/ כרעיה‏ : his feet were being burned
See the entire entry for kbb vb. to char

BT Ket 67b(39) :בההוא אתונא דהוה גריפא נורא הוא‏ : a certain oven from which the fire [i.e. the coals] had been scraped clean
See the entire entry for nūr, nūrā n.f.(m.) fire