μονόρριζος
From LSJ
ὥσπερ λίθοι τε καὶ πλίνθοι καὶ ξύλα καὶ κέραμος, ἀτάκτως μὲν ἐρριμμένα οὐδὲν χρήσιμά ἐστιν → just as stones and bricks, woodwork and tiles, tumbled together in a heap are of no use at all (Xenophon, Memorabilia 3.1.7)
English (LSJ)
ον,
A with a single root, Thphr.HP 1.6.6, 7.2.7 (Sup.); of teeth, with a single fang, Gal.2.753.