G0614
ἀπόκρυφος
concealed
ἀπόκρυφος, -ον (ἀποκρύπτω), [in LXX Chiefly for סֵתֶר ;] hidden: Mrk.4:22, Luk.8:17, Col.2:3 (see Lft., in l; MM, see word).† (AS)
Full Thayer's lexicon entry
ἀπόκρυφος — apókryphos
ἀπόκρυφος, ἀπόκρυφον (ἀποκρύπτω), hidden, secreted: Mar 4:22; Luk 8:17. stored up: Col 2:3. (Dan 11:43 (Theod.); Isa 45:3; 1Ma 1:23; Xenophon, Euripides; (cf. Lightfoot on the word, Colossians, the passage cited and Ignatius i. 351f).)
3 occurrences
Mark (1), Luke (1), Colossians (1)