cause to strike root: metaph., plant, fix firmly, ὅς μιν [τὴν ναῦν] λᾶαν θῆκε καὶ ἐρρίζωσεν ἔνερθεν Od. 13.163; [νήσους] κατὰ βυσσὸν πρυμνόθεν (s. v.l.) Call. Del. 35:—Pass., of trees and plants, take root, strike root, X. Oec. 19.9, Thphr. CP 1.2.1:—Med., ἄριστον ῥιζώσασθαι, of the fig, Id. HP 2.5.6; so αἱ πίνναι ἐρρίζωνται, opp. ἀρρίζωτοι, Arist. HA 548a5; ῥ. ἐπί τινος AP 6.66 (Paul.Sil.); ὀδὸς βάθροισι γῆθεν ἐρριζωμένος made fast or solid, S. OC 1591; of a bridge, αἰώνιος ἐρρίζωται Epigr.Gr.
metaph., ἐρρίζωσε τὴν τυραννίδα Hdt. 1.64:—Pass., τυραννὶς ἐρριζωμένη ib. 60, cf. Pl. Lg. 839a; ἐξ ἀμαθίας πάντα κακὰ ἐρρ. have their root in . . , Id. Ep. 336b, cf. S.E. M. 1.271; ἐν ἀγάπῃ ἐρρ. Ep.Eph. 3.18.
Pass. also of land, to be planted with trees, ἀλωὴ ἐρρίζωται Od. 7.122.