Strong's G2508 · Greek

καθαίρω

kathairo · kath-ah'-ee-ro

from 2513; to cleanse, i.e. (specially) to prune; figuratively, to expiate

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 1 καθαίρω ( καθαρός ), [in LXX: Is 28:27 ( דּוּשׁ ho.), II Ki 4:6 , Je 51:39 א * ;] to cleanse : of pruning, Jo 15:2 (cf. καθαρίζω ).† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain