εὐθύρριζος
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
ον,
A straight-rooted, Thphr.HP1.7.2.
Greek (Liddell-Scott)
εὐθύρριζος: εὐθείας ῥίζας ἔχων, Θεοφρ. π. Φυτ. Ἱστ. 1, 7, 2.