Ancient Greek lemma · Strong’s G4456

πωρόω

poroo · /po-ro'-o/ — “harden”

petrify; cause a stone; callus to form; a stone forming; Aër; unite fractured bones by a callus; become hard; become thickened, coagulated; become insensible; become insensible, obtuse; blind

Derivation: from πῶρος (a kind of stone)