μετοχέτ-ευσις · metochet-eusis — LSJ
conveyance in a duct or channel, ἡ ἐς τὸ ἔντερον τῶν ὑγρῶν μ. Aret. SA 2.5; ‘derivation’ (opp. ἀντίσπασις), Gal. 1.382, Id. ap. Orib. 8.18 tit.
Astrol., transference of nature when a planet passes from conjunction with another into conjunction with a third, Porph. in Ptol. 188.