STRONGS NT 2867: κονιάω

κονιάω, κονίω: perfect passive participle κεκονιαμενος; (from κονία, which signifies not only 'dust' but also 'lime'); to cover with lime, plaster over, whitewash: τάφοι κεκονιάμενοι (the Jews were accustomed to whitewash the entrances to their sepulchres, as a warning against defilement by touching them (B. D. under the word , 1 at the end; cf. Edersheim, Jesus the Messiah, ii. 316ff)), Matthew 23:27; τοῖχε κεκονιαμένε is applied to a hypocrite who conceals his malice under an outward assumption of piety, Acts 23:3. (Demosthenes, Aristotle, Plutarch, others; for שִׂיד, Deuteronomy 27:2, 4.)