καθήκω,
Ionic dialect κατήκω, (see. ἥκω) come or go down, especially to fight, [[ 4th-5th c.BC: Aeschylus Tragicus “Choephori” 455 (Lyric poetry). ] Refs 4th c.BC+]
__2 come down to, reach to, ἐς θάλασσαν [[ 5th c.BC: Herodotus Historicus 7.22, 130 ] Refs 5th c.BC+]; ἐπὶ θάλ. [[ [prev. author] 2.32, 5.49, 5th c.BC: Thucydides Historicus 2.27; πρὸς τὸν Μηλιακὸν κόλπον [prev. author] 3.96 ] Refs 5th c.BC+]; κέρκος.. εἰς λεπτὸν καθήκουσα tapering away, [[ 4th c.BC: Aristoteles Philosophus “Historia Animalium” 503a20: _metaphorically_, of descent, ὃ [γένος] εἰς αὐτὸν κ. 2nd c.AD: Arrianus Historicus “Anabasis” 1.11.8. ] Refs 4th c.BC+]
__3 come in due course to any one, καθῆκεν ἐς ἡμᾶς ὁ λόγος the turn of speaking came to us, [[ 4th c.BC: Aeschines Orator 2.25; παρὰ τετάρτην ἡμέραν ἑκάστῃ σημαίᾳ καθήκειν τὴν λειτουργίαν 2nd c.BC: Polybius Historicus 6.33.9, compare “PCair.Zen.” 218.24 (3rd c.BC)] Refs 4th c.BC+]; τῆς βολῆς καθηκούσης ἐς αὐτόν [[ 1st-2nd c.AD: Plutarchus Biographus et Philosophus “Alcibiades” 2; ἐν τῷ ξυμποσίῳ.. ἐπὶ τὸν Θεσμόπολιν καθῆκε τὸ σκῶμμα 2nd c.AD: Lucianus Sophista “Merc.Cond.” 34. ] Refs 1st c.AD+]
__4 of Time, ὁπότε καθήκοι ὁ Χρόνος [[ 5th-6th c.BC: Xenophon Historicus “Historia Graeca (Hellenica)” 4.7.2; ὅταν οἱ Χρόνοι καθήκωσι 4th c.BC: Aristoteles Philosophus “Historia Animalium” 591a8; πρότερον ἢ τὴν ὥραν καθήκειν “PRev.Laws” 41.14 (3rd c.BC)] Refs 5th c.BC+]; in participle, τοῦ καθήκοντος Χρόνου the normal time, [[ 5th c.BC: Sophocles Tragicus “Oedipus Tyrannus” 75, 4th c.BC: Demosthenes Orator 4.35, compare 4th c.BC: Aeschines Orator 3.126 ] Refs 5th c.BC+]; αἱ κ. ἡμέραι the regular, proper days, [[ 4th c.BC: Demosthenes Orator 59.80; ἐν τῇ κ. ὥρᾳ 4th c.BC: Aristoteles Philosophus “Historia Animalium” 568a17; ἐν τοῖς κ. καιροῖς [prev. work] 573a30 ] Refs 4th c.BC+]; of events, ἑορτῆς εἰς τὰς ἡμέρας ἐκείνας καθηκούσης as the festival fell on those days, [[ 1st-2nd c.AD: Plutarchus Biographus et Philosophus “Fabius Maximus” 18, compare 2nd c.BC: Polybius Historicus 4.7.1 ] Refs 2nd c.BC+]; ἐκκλησίαν ποιῆσαι, ὅταν ἐκ τῶν νόμων καθήκῃ when it is legally due, [[ 4th c.BC: Demosthenes Orator 19.185 ] Refs 4th c.BC+]; ἡ κ. σύνοδος or ἐκκλησία, [[ 2nd c.BC: Polybius Historicus 4.14.1, 1.15.8, etc. ] Refs 2nd c.BC+]