ῥίζωμα
From LSJ
μή μοι θεοὺς καλοῦσα βουλεύου κακῶς· πειθαρχία γάρ ἐστι τῆς εὐπραξίας μήτηρ, γυνὴ Σωτῆρος· ὦδ᾽ ἔχει λόγος → When you invoke the gods, do not be ill-advised. For Obedience is the mother of Success, wife of Salvation—as the saying goes.
English (LSJ)
ατος, τό,
A the mass of roots of a tree, Thphr.CP3.3.4. II element, τέσσαρα μὲν πάντων ῥιζώματα πρῶτον ἄκουε Emp.6.1; ἀενάου φύσεως ῥ. Pythag.15. 2 stem, race, A.Th.413; θείων δ' ἀπ' ἀμφοῖν ἔκγονον ῥιζωμάτων, i.e. on the side of both parents, Theodect.3.