εἶδος
eidos
that which is seen: form, shape
Appears 388 times across Plato's dialogues.
Frequency by work
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Dictionary (LSJ)
εἶδος, εος, τό, (εἴδω A) A. that which is seen: form, shape, freq. in , of the human form or figure, esp. abs. in acc. with Adjs., εἶδος ἄριστος, ἀγητός, κακός, Il. 3.39,5.787, 10.316; ἀλίγκιος ἀθανάτοισιν Od. 8.174; opp. φρένες, 17.454; opp. βίη, Il. 21.316; δευτέρα πεδʼ Ἀγιδὼν τὸ εἶ. 23.58; τὸ εἶδος τῆς γυναικὸς ὑπερεπαινέων 1.8, etc.; appearance, of a dog, Od. 17.308; ὄφιες ποικίλοι τὰ εἴδεα 3.107; εἴδεα [τῶν θεῶν] σημήναντες 2.53; γυνὴ τό γʼ εἶδος Th. 267: hence, periphr. for person, El. 1177; τὸ ἐπʼ εἴδει καλόν Smp. 210b. b. esp. of beauty of person, comeliness, εἴδεος ἐπαμμένος 1.199; πλούτῳ καὶ εἴδει προφέρων 6.127. c. Medic., physique, habit of body, constitution, Nat.Hom. 9, Hum. 1: more freq. in pl., Id. Aër. 3, al.; εἴδεα εὔχροά τε καὶ ἀνθηρά ib.5. 2. generally, shape, σχῆμα καὶ εἶδος Off. 3, cf. Mochl. 6, etc.; pattern, of ‘figurate’ numbers, Ph. 203a15; ἡ μονὰς εἶδος εἰδῶν τυγχάνει Theol.Ar. 4, cf. 17; decorative pattern or figure, Them. 29 (pl.); of a musical scale, τοῦ διὰ τεσσάρων τρία εἰδη Harm.p.74 M. (identified with σχῆμα, ibid.): in pl., shapes, i.e. various kinds of atoms (cf. ἰδέα), ap. Sens. 51. b. Geom., δύο εἴδη τῷ εἴδει δεδομένα two figures given in species, Dat. 53, etc.; esp. in central conics, rectangle formed by a transverse diameter and the corresponding parameter, Con. 1.14,21, al.; also, species of numbers, of the terms in an algebraical expression involving different powers of the unknown quantity, Def. 11. II. form, kind, or nature, τῶν ἀλλέων παιγνιέων τὰ εἴδεα 1.94; τὸ εἶ. τῆς νόσου 2.50, etc.; ἐν ἁρμονίας εἴδει εἶναι, γενέσθαι, to be or become like . . , Phd. 91d, cf. Cra. 394d; ὡς ἐν φαρμάκου εἴδει by way of medicine, R. 389b; νόμων ἔχει εἶδος is in the province of law, Pol. 1286a3; situation, state of things, σκέψασθε ἐν οἵῳ εἴδει . . τοῦτο ἔπραξαν 3.62; plan of action, policy, ἐπὶ εἶδος τρέπεσθαι 6.77, 8.56; ἐπʼ ἄλλʼ εἶδος τρέπεσθαι take up another line, Pl. 317; specific notion, meaning, idea, ἂν παρέχῃ τὸ ἓν εἶ. δύο ὀνόματα . . , περὶ ἑνὸς εἴδεος δύο ὀνόματα οὐ τὰ αὐτά 24.1; department, VM 12 (but also, elementary nature or quality, ib. 15); type, sort, πυρετῶν Epid. 3.12; αὐγῆς Off. 3, etc.: Rhet., style of writing, τὰ εἴδη τῶν λόγων 13.17, cf. Rh.Al. 1441b9 (pl.); later, definite literary form, Men.Rh.init., Chrest. p.243 W., EM 295.52; also, example of a style, ὅλοις εἴδεσι 15.74; later, single poem, applied to Pindarʼs odes by Sch.; also, written statement, ἀναγνωσθέντος εἴδους PAmh. 2.65.11 (ii A.D.), cf. PTeb. 287.12 (ii A.D.). III. class, kind, πᾶν τὸ τῶν πίστεων εἶδος 15.280, cf. 24.192: freq. in , περὶ παντὸς τοῦ εἴδους . . ἐν ᾧ . . Tht. 178a; ἑνὶ εἴδει περιλαβεῖν ib.148d; εἰς ταὐτὸν ἐμπέπτωκεν εἶδος ib. 205d, etc.; logical species, Sph. 235d; ἓν εἶδος ἀποχωρίζειν Plt. 262e; τὰς διαφορὰς ὁπόσαιπερ ἐν εἴδεσι κεῖνται, ib.285b, al., cf. Metaph. 1057b7, al., Cat. 2b7; as a subdivision of γένος, Rh. 1393a27; ἐπὶ τοῦ αὐτοῦ γένους πεύκη, εἴδει διαφέρουσα, 1.69. 2. = ἰδέα II.2, Phd. 103e, R. 596a, Prm. 132a, al., Metaph. 990b9, al., etc. 3. form, opp. matter (ὕλη), Ph. 187a18, al., Metaph. 1029a29: hence, formal cause, essence, ib.1032b1, etc. IV. in later Gr., wares of different kinds, goods, 109.1 (iii/iv A.D.), PFay. 34.7 (ii A.D.): hence, payments in kind, opp. χρυσίον, Nov. 17.8, cf. Cod.Just. 1.4.18, al.; spices, Mag. 3.61; groceries, Anon.post Max.p.120 L.; εἶ. ἰατρικόν drug, s.v. νίτρον, cf. Hippiatr. 129.54 and v. ἑξάειδος, τετράειδος, τρίειδος; of a chemical reagent, Zos.Alch.p.205 B.
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