G2508
καθαίρω
to prune
καθαίρω (καθαρός), [in LXX: Isa.28:27 (דּוּשׁ ho.), 2Ki.4:6, Jer.51:39 א* ;] to cleanse: of pruning, Jhn.15:2 (cf. καθαρίζω).† (AS)
The KJV translates G2508 in the following manner:
purged (2x), purgeth (2x)
Full Thayer's lexicon entry
καθαίρω — kathaírō
καθαίρω; perfect passive participle κεκαθαρμενος; (καθαρός); to cleanse, properly, from filth, impurity, etc.; trees and vines (from useless shoots), to prune, Joh 15:2 (δένδρα... ὑποτεμνομενα καθαίρεται, Philo de agric. § 2 (cf. de somniis ii. § 9 middle)); metaphorically, from guilt, to expiate: passive Heb 10:2 R G (see καθαρίζω, at the beginning) (Jer 13:27; and so in Greek writings from Herodotus down). (Compare: διακαθαίρω, ἐκκαθαίρω.)
1 occurrence