εὔαρχος
From LSJ
ἔνδον σκάπτε, ἔνδον ἡ πηγή τοῦ ἀγαθοῦ καί ἀεί ἀναβλύειν δυναμένη, ἐάν ἀεί 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.
English (LSJ)
ον,
A governing well, Lvc.233. 2 easily governed, Arist.Oec.1344b14. II beginning well, λόγος Luc.Lex.1; making a good beginning, of one's first customer in the market, AP6.304 (Phan., s.v.l.).