Liddell-Scott-Jones

κρυφαῖος (kruphaios) hidden ^G:A

κρυφαῖος-αῖος, α, ον,

also ος, ον [Refs 1st c.BC+]:— hidden, [κρυφαῖοςαίοις Vetus Testamentum Graece redditum LXX.Jer.23.24 ">LXX+5th c.BC+], +others

__2 secret, clandestine, [Refs 5th c.BC+]; ἔκπλους [Refs 5th c.BC+]; ἀδικίαι Phld. [prev. cited] adverb -ως [Refs 4th c.BC+]

_{LSJ Scripture Refs: LXX.Jer.23.24}