Dictionary entry

πωρόω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

πωρόω, -ῶ

(< πῶρος, 1. a stone. 2. a callus), [in LXX: Jb 17:7 B (כּהה), Pr 10:20 A*;]

to petrify, harden, form a callus. Metaph., π. τ. καρδίαν, Jo 12:40. Pass., Ro 11:7; τ. νοήματα, II Co 3:14; ἡ καρδία, Mk 6:52 8:17.†