Διὸς κύαμος

From LSJ

ἔνδον σκάπτε, ἔνδον ἡ πηγὴ τοῦ ἀγαθοῦ καὶ ἀεὶ ἀναβλύειν δυναμένη, ἐὰν ἀεὶ σκάπτῃς → Dig within. Within is the wellspring of Good; and it is always ready to bubble up, if you just dig | Look within. Within is the fountain of the good, and it will ever bubble up, if thou wilt ever dig.

Source

Spanish (DGE)

-ου, ὁ bot. otro n. del ὑοσκύαμος atribuido a varias especies del género Hyoscyamus, beleño Ps.Dsc.4.68, Hippiatr.Paris.1017.