ἀπόσχασις
From LSJ
Νόμιζ' ἀδελφοὺς τοὺς ἀληθινοὺς φίλους → Veros amicos alteros fratres puta → für deinen Bruder halte einen wahren Freund
English (LSJ)
εως, ἡ,
A opening of a vein, Hp.Epid.7.66 (but possibly scarification). II letting go, in an engine, Ph.Bel.74.51.
German (Pape)
[Seite 329] ἡ, Aderlaß, Hippocr.