to cut off the extremities, mutilate , τὰς πρῴρας ἠκρωτηρίασαν cut the beaks off the prows, (Herdotus Historicus):—;so in Mid. τὰς τριήρεις ἀκρωτηριασάμενοι (Xenophon Historicus); perfect passive in middle sense, ἠκρωτηριασμένοι τὰς πατρίδας having mutilated their countries, (Demosthenes Orator) (ML)