embrutecerse
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → But for extreme illnesses, extreme remedies, applied with severe exactitude, are the best (Hippocrates, Aphorism 6)
Spanish > Greek
ἀποκτηνόω, ἐκβαρβαρόω, ἐκθηριόω, ἐξαγροικίζομαι, ἐξαγριόω, ἀφρονεύομαι