Abbott-Smith Manual Greek Lexicon
σπουδαῖος (G4705)
3 σπουδαῖος , -α, -ον ( σπουδή ), [in LXX: Ez 41:25 * ;] in haste ; hence, zealous, eager, diligent, earnest : seq. ἐν , II Co 8:22 ; compar., -οτεροσς ib. 17 (here in superl. sense, v. Bl., § 44, 3) 22 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain