κατῶρυξ · katōryx — LSJ
dug out, quarried, of quarried stone
dug out, quarried, ἀγορὴ . . λάεσσι κατωρυχέεσσʼ ἀραρυῖα (as if from κατωρυχής) Od. 6.267, cf. 9.185; λίθοι κ. Poll. 7.123; τὴν κατώρυγα (sic) θεμελίωσιν foundation of quarried stone, Ph.Byz. Mir. 6.2.
2 excavated, hewn out
excavated, hewn out, ἐκ κατώρυχος στέγης, of a rock tomb, S. Ant. 1100; οἰκήματα κ. D.C. 56.11.
II underground
underground, κατώρυχες δʼ ἔναιον A. Pr. 452.
2 beneath the horizon
beneath the horizon, [ἄστρα] Arat. 510.
III cavern, caves
Subst. κατῶρυξ, ἡ, cavern, S. Ant. 774; χρυσοῦ κατώρυχες treasure caves, E. Hec. 1002, cf. Max.Tyr. 6.3.
2 rooting branch
rooting branch, Str. 15.1.21.