ἀγρίζομαι
From LSJ
πολλάκις δοκεῖ τὸ φυλάξαι τἀγαθὰ τοῦ κτήσασθαι χαλεπώτερον εἶναι → it often proves harder to keep than to win prosperity | it is often harder for men to keep the good they have, than it was to obtain it
German (Pape)
[Seite 23] gereizt werden, Hippocr. l. d.
Greek (Liddell-Scott)
ἀγρίζομαι: ἐρεθίζομαι, Ἱπποκρ.