κρυφ-αῖος, α, ον,
also ος, ον [[ 1st c.BC: Philodemus Gadarensis Epigrammaticus “Piet.” 101, 2nd c.AD: Lucianus Sophista “Ocyp.” 166 ] Refs 1st c.BC+]:— hidden, [[ 5th c.BC: Pindarus Lyricus “I.” 1.67, 4th-5th c.BC: Aeschylus Tragicus “Ch.” 83 (Lyric poetry), 5th c.BC: Sophocles Tragicus “Aj.” 899, 5th-6th c.BC: Plato Philosophus “Ti.” 77c; ἐν κρυφαίοις Vetus Testamentum Graece redditum LXX.Jer.23.24 ] LXX+5th c.BC+], +others
__2 secret, clandestine, [[ δρασμός Aeschylus Tragicus [{4-5th c.BC}] “Persae” 360 ] Refs 5th c.BC+]; ἔκπλους [[[prev. work] 385; ἔπος 5th c.BC: Sophocles Tragicus “fragment” 935 ] Refs 5th c.BC+]; ἀδικίαι Phld. [prev. cited] adverb -ως [[ 4th-5th c.BC: Aeschylus Tragicus “Pers.” 370, Aen. Tact. 18.8. ] Refs 4th c.BC+]