Lexical Definition

‎ἀποκρύπτω‎ apokrýptō (ap-ok-roop'-to) to conceal ^G:V
from ‎ἀπό‎ and ‎κρύπτω‎

hide.

• to conceal away (i.e. fully)
• figuratively, to keep secret

Abbott-Smith

ἀπο-κρύπτω, [in LXX chiefly for סתר;]
to hide, conceal, keep secret: c. acc., Lk 10:21; pass., I Co 2:7, Eph 3:9, Col 1:26 (MM, s.v.).†

Abbott-Smith References

Liddell-Scott-Jones

ἀποκρύπτω,

used by [Refs 8th c.BC+] only in aorist 1, Epic dialect imperfect ἀποκρύπτασκε[Refs 8th c.BC+] —passive, aorist -εκρύβην [ῠ[LXX]future -κρῠβήσομαι[LXX+2nd c.AD+]:—middle, aorist 2 -εκρυβόμην[Refs 2nd c.AD+]:—hide from, keep hidden from, with accusative et genitive, αἴ γάρ μιν θανάτοιο.. δυναίμην νόσφιν ἀποκρύψαι[Refs 8th c.BC+]: with double accusative, hide or keep back from one, οῠτε σε ἀποκρύψω τὴν ἐμὴν οὐσίαν[LXX+5th c.BC+]:— middle, ἀποκρύπτεσθαί τινά τι[Refs 5th c.BC+]; ἀ. τι keep it back, [Refs 5th c.BC+]

__2 hide from sight, keep hidden, conceal, [Refs 8th c.BC+]:—middle, [Refs 5th c.BC+]; ἀ. ἑαυτόν efface oneself, [Refs 5th c.BC+]infinitive, ἀποκρύπτεσθαί τι μὴ καθ᾽ ἡδονὴν ποιεῖν to conceal one's doing, [Refs 5th c.BC+]; perfect passive in middle sense, οὐκ ἀποκέκρυπται τὴν οὐσίαν[Refs 5th c.BC+]:—passive, τὸν Ἑλλήσποντον ὑπὸ τῶν ἀποκεκρυμμένον[Refs 5th c.BC+]; τοὺς ἀποκρυπτομένους those who withdraw from public, [Refs 2nd c.AD+]
__3 obscure, [Refs 5th c.BC+]
__II ἀ. γῆν lose from sight, of ships running out to sea, opposed to ἀνοίγνυμι[Refs 5th c.BC+]; ἐπειδὴ ἀπεκρύψαμεν αὐτούς when we got out of sight of them, [Refs 5th c.BC+]; ἀποκρύπτουσι Πελειάδες (i.e. ἑαυτούς) disappear, [Refs 8th c.BC+]; but also passive of ships, [Refs 2nd c.BC+]

_{LSJ Scripture Refs: LXX.Job.3.23 ☩ LXX.Ps.18.6*}