Abbott-Smith Manual Greek Lexicon
ἀπόκρυφος (G614)
3 ἀπόκρυφος , -ον ( ἀποκρύπτω ), [in LXX Chiefly for סֵתֶר ;] hidden : Mk 4:22 , Lk 8:17 , Col 2:3 (v. Lft., in l.; MM, s.v.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain