ἐμβαθύνω
From LSJ
δρυὸς πεσούσης πᾶς ἀνὴρ ξυλεύεται → when the oak falls, everyone cuts wood | when an oak has fallen, every man gathers wood | on the fall of an oak, every man gathers wood | when an oak has fallen, every man becomes a woodcutter | one takes advantage of somebody who has lost his strength | one takes advantage of somebody who has lost his power | when the tree is fallen, every man goes to it with his hatchet
English (LSJ)
A make deep, hollow out, βόθρια Alciphr.3.13; cause to sink deep in, κακίαν ἑαυτοῖς Plu.2.1128e. II intr., go deep into, τοῖς νόμοις, ταῖς ἐπιστήμαις, Ph.1.18,341; sink deep in, εἰς κάθισιν LXX Je.30.8 (49.30).