ὄρνιθι γὰρ καὶ τὴν τότ᾽ αἰσίῳ τύχην παρέσχες ἡμῖν → for it was by a good omen that you provided that past fortune to us
membro: āre, v. a. membrum,
I to form limb by limb, to furnish with limbs: quinque et triginta diebus infans membratur, Censor. de Die Nat. 11; Dracont. Hex. 220.