Abbott-Smith Manual Greek Lexicon
ἐκ-λύω (G1590)
6 ἐκ-λύω [in LXX for רָפָה , etc. ;] to loose, release . to unloose , as a bow-string, to relax, enfeeble ; pass., to be faint, grow weary : Mt 15:32 , Mk 8:3 ; of mental weariness, Ga 6:9 , He 12:3 , 5 (LXX) .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain