παλιόμουτρο
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.
Greek Monolingual
το
αχρείος άνθρωπος, παλιόκορμο.
[ΕΤΥΜΟΛ. < παλι(ο)- (βλ. λ. παλαιο-) + μούτρο].