κάθαρμα · katharma — LSJ
that which is thrown away in cleansing, offscourings, refuse of a sacrifice, residuum, slag
that which is thrown away in cleansing: in pl., offscourings, refuse of a sacrifice, A. Ch. 98; residuum of ore after smelting, slag, Str. 3.28: sg., = κάθαρσις II, Hp. Epid. 5.2.
2 outcast
= φαρμακός, Sch. Ar. Pl. 454, Sch. Id. Eq. 1133: hence metaph., of persons, outcast, Ar. Pl. 454; αἱρούμενοι καθάρματα στρατηγούς Eup. 117.8; τοὺς μὲν καθάρματα, τοὺς δὲ πτωχούς, τοὺς δʼ οὐδʼ ἀνθρώπους ὑπολαμβάνων εἶναι D. 21.185, cf. 199, 18.128, Aeschin. 3.211, etc.
II purification, for clearing
in pl., = κάθαρσις, purification, E. IT 1316; ποντίων καθαρμάτων . . ἀμοιβάς in return for clearing the sea (of pirates), Id. HF 225.
III the purified ground
ἐντὸς τοῦ καθάρματος within the purified ground where the assembly was held, Ar. Ach. 44.