συνήκω

A. to have come together, be assembled, meet, Th. 5.87.

II. ς. εἰς ἕν, of walls, meet in a point, X. Vect. 4.44; ς. εἰς στενόν to narrow down, Arist. IA 710b2; so εἰς ὀξύ Id. HA 495b10, Thphr. HP 3.11.1.