μήτηρ
1. "a mother", Hom., etc.; of animals, "a dam", id=Hom.; ἀπό or ἐκ μητρός from one's "mother's womb", Pind., Aesch.
2. also of lands, μήτηρ μήλων, θηρῶν "mother" of flocks, of game, Il.; of Earth, γῆ πάντων μ. Hes.; γῆ μήτηρ Aesch.; ὦ γαῖα μῆτερ Eur.:—also ἡ Μάτηρ alone for Δημήτηρ, Hdt.
3. of one's native land, μᾶτερ ἐμά, Θήβα Pind., etc.
4. poet. as the "source" of events, μ. ἀέθλων, of Olympia, id=Pind.; night is "the mother" of day, Aesch.; the grape of wine, id=Aesch.