μετ-έχω
[in LXX: Pro.5:17 (עֵת), Pro.1:18, 1Es.5:40 Est.8:70, Sir.51:28, al. ;]
to partake of, share in: ἐπ᾽ ἐλπίδι τοῦ μετέχειν, 1Co.9:10; with genitive of thing(s), 1Co.9:12 10:21 10:30, Heb.2:14; in sacramental sense, ἑκ τ. ἐνὸς ἄρτου μ., 1Co.10:17 (cf. MM, xvi); metaphorically, γάλακτος, Heb.5:13; of belonging to a tribe, Heb.7:13.†
(AS)