A). κᾰθᾰρῶ X. Oec. 18.6 , prob. in Pl. Lg. 735b , etc.: aor. 1 ἐκάθηρα Od. 20.152 , Th. 3.104 , Hp. Mul. 1.47 , IG 22.1672.47 (ἀνα-), Theoc. 5.119 , etc.; ἐκάθᾱρα is found in codd. of Antipho 6.37 , X. An. 5.7.35 , Hp. Acut.(Sp.) 11 , and commonly in later Gr., Thphr. Char. 16.7 , BCH 6.23 (Delos, ii B.C.),(ἀνα-) PPetr. 3p.141 (iii B.C.),(συνανα-) IG 11(2).163 A 56 (Delos, iii B.C.), cf. διακαθαίρω, ἐκκαθαίρω, etc., and Phryn. 16 ; v. infr. Med.: pf. κεκάθαρκα (ἐκ-) Sch. Ar. Pax 752 :— Med., fut. καθαροῦμαι Pl. Cra. 396e , Hp. Morb. 2.38 (in pass. sense, ib. 2.13 , Nat.Mul. 13 , Mul. 2.160 ): aor. ἐκαθηράμην A. Fr. 354 , Hp. Epid. 5.43 , Pl. Lg. 868a , IG 11(2).146 A 78 (Delos, iv B.C.), 153.9 , 154 A 37 (ibid., iii B.C.); later ἐκαθᾱράμην ib. 146 A 80 (iv B.C.), Inscr.Délos 290.79 , al. (iii B.C.), etc.,(ἀνα-) IG 22.1668.8 (iv B.C.): Pass., fut. καθαρθήσομαι Ruf. ap. Orib. 7.26.64 , Gal. 7.222 : aor. ἐκαθάρθην Hdt. 1.43 , Th. 3.104 , Hp. Epid. 5.2 , etc. (aor. 2 ἀποκαθαρῇ is f.l. in Arr. Cyn. 27.1 ): pf. κεκάθαρμαι Hp. Nat.Mul. 8 , Pl. Phd. 69c , etc.:(καθαρός):

I). cleanse, of things, καθήρατε δὲ κρητῆρας Od. 20.152 ; τραπέζας ὕδατ ι .. καθαίρειν 22.439 ; καθήραντες χρόα καλὸν ὕδατι 24.44 ; κ. οἰκίαν Antipho l.c., Thphr. l.c.; of wounds, Hp. Ulc. 6 , al. (cf. καθαιρέω 11.6 ): c. gen., ἵππον αὐχμηρᾶς τριχός S. Fr. 475 ; κ. σῖτον X. Oec. 18.6 ; γῆν clear of weeds, ib. 20.11 , cf. PLille 5.24 (iii B.C.), etc.; χρυσόν purify, refine, Pl. Plt. 303d : metaph., purge, clear a land of monsters and robbers, S. Tr. 1012 (hex.), 1061 , Plu. Thes. 7 ; κ.λῃστηρίων τὴν ἐπαρχίαν Id. Mar. 6 : c.acc. cogn., καθαρμὸν κ. Pl. Lg. 735b :— Pass., τὴν νηδὺν ἀνασχισθεῖσαν καὶ καθαρθεῖσαν Hdt. 4.71 .

2). in religious sense, purify,[δέπας] ἐκάθηρε θεείῳ by fumigating with sulphur, Il. 16.228 ; κ. τινὰ φόνου purify him from blood, Hdt. 1.44 , cf. Berl.Sitzb. 1927.160 (Cyrene); Δῆλον κ. Hdt. 1.64 , cf. Th. 1.8 ; στόλον κ., Lat. classem lustrare, App. BC 5.96 : abs., IG 5(1).1390.68 (Andania, i B.C.):— Med., purify oneself, get purified, Hdt. 4.73 ; οἱ φιλοσοφίᾳ καθηράμενοι Pl. Phd. 114c , cf. Phdr. 243a , Cra. 396e ; καθαίρεσθαι καθαρμούς Id. Lg. 868e ; καθήρασθαι στόμα keep one's tongue pure, A. Fr. 354 :— Pass., κεκαθαρμένος καὶ τετελεσμένος Pl. Phd. 69c .

3). Medic., purge, evacuate, either by purgatives or emetics, κ. κάτω ἢ ἄνω Hp. Mul. 1.64 ( Pass.), cf. Thphr. HP 9.11.11 , etc.:— Med., κατὰ κύστιν ἐκαθήρατο Hp. Epid. 1.15 :— Pass., ib. 5.2 , etc.; also of menstruation, Id. Superf. 33 ; of the after-birth, τὰ λοχεῖα κ. Id. Mul. 1.78 ; καθαίρων,, name for ἶρις, Ps.- Dsc. 1.1 .

4). prune a tree,i.e.clear it of superfluous wood, Ev.Jo. 15.2 .

5). sift, winnow grain, PTeb. 373.10 (ii A.D.).

6). metaph., = μαστιγόω , Theoc. 5.119 .

II). of the thing removed by purification, purge away, wash off, λύματα πάντα κάθηρεν Il. 14.171 ; ἐπεὶ πλῦνάν τε κάθηράν τε ῥύπα πάντα Od. 6.93 ; clear away, τὰ λῃστικά D.C. 37.52 : metaph., φόνον κ. A. Ch. 74 (lyr.); also perh., clear up, explain an action, τὴν σύστασιν Epicur. Nat. 66G. , cf. 73G.

III). c. dupl. acc., αἷμα κάθηρον .. Σαρπηδόνα cleanse him of blood, wash the blood off him, Il. 16.667 :— Pass., καθαίρομαι γῆρας I am purged of old age, A. Fr. 45 ; ὁ καθαρθεὶς τὸν φόνον Hdt. 1.43 .