cut, prune the roots
cut or prune the roots of a tree by digging round it, συκῆ ῥιζοτομηθεῖσα Thphr. CP 1.17.10, etc.
II cut up by the roots, extirpate, cut and gather, roots, gather roots
cut up by the roots, extirpate, D.S. 32.4: esp. for Medic. purposes, ῥ. βοτάνας cut and gather their roots, Hp. Ep. 16, cf. Thphr. HP 4.5.1; gather roots for food, Str. 16.4.9: metaph., Philostr. VA 7.26.