ἐπικοινωνέω

A. communicate with, τῷ ἔξω χωρίῳ Hp. Prog. 7; ἀλλήλοις Pl. Sph. 251d; of troops in order of battle, to be in touch with, τοῖς ἄκροις Ascl. Tact. 1.3; ἐ. πᾶσαι αἱ ἐπιστῆμαι ἀλλήλαις κατὰ τὰ κοινά Arist. APo. 77a26; τίνι οὐκ ἐ. [τὸ μάθημα] τῶν ἐπικαιροτάτων ἐν ἰητρικῇ; Hp. Fract. 31, cf. Pl. Grg. 464c: c. dat. pers., D. 29.36.

2. . share in a thing with one, τῶν γραμμάτων τί ἐπικοινωνεῖ; what letters has it in common? Pl. Cra.. 394c; νόμος οὐδὲν ἐπικοινωνῶν τῷ περὶ τῶν στεφανουμένων νόμῳ having nothing in common with . ., Aeschin. 3.44: generally, share in, c.gen., Ph. 1.561.

3. . to be in partnership with, c. dat., POxy. 1280.6 (iv A.D.).