A. at the farthest point or end, hence either topmost, outermost, or inmost.

1. highest, topmost, ἀκροτάτῃ κορυφῇ Il. 1.499, al.; ἐν πόλει ἄκρῃ, = ἐν ἀκροπόλει, Il. 6.88, cf. 257; ἄκρῳ Ὀλύμπῳ 13.523; ἀνὰ Γαργάρῳ ἄκρῳ 14.352; λάψοντες . . μέλαν ὕδωρ ἄκρον at its surface, 16.162; ἄκρον ῥινόν surface of skin, Od. 22.278; ἐπʼ ἄκρων ὀρέων o mountain tops, S. OT 1106: Sup. ἀκρότατος, ὔσδος Sapph. 93.2; ὀρόφοισι Orac. ap. Hdt. 7.140.

2. outermost, πεδίον ἐπʼ ἄκρον to the farthest edge of the plain, S. Ant. 1197; κατʼ ἄκρας σπιλάδος from the surface of a stone, Id. Tr. 678; esp. of extremities of body, ἄ. χείρ, πόδες, ὦμος, end of hand, ends of feet, tip of shoulder, Il. 5.336, 16.640, 17.599; ἄκρων χειρῶν καὶ ποδῶν Hdt. 1.119, cf. Th. 2.49, Pl. La. 183b, Ti. 76e; but τὸ ἄ. τῆς χειρός, τοῦ ποδός, thumb, great toe, LXX Ex. 29.20, Le. 18.22; γλῶσσαν ἄκραν S. Aj. 238; πίτυν ἄκρας τῆς κόμης καθέλκων by the top of the crown, Cratin. 296:—ἐπʼ ἄκρων [δακτύλων] on tiptoe, S. Aj. 1230, ubi v. Sch.; comically, ἐπʼ ἄκρων πυγιδίων on tip-tail, Ar. Ach. 638; ἐν ἄκροισι βὰς ποσί E. Ion 1166; παρʼ ἄκρας τρίχας Or. 128; ἀκροτάτοις χείλεσι Epigr.Gr. 547.8:—οὐκ ἀπʼ ἄκρας φρενός not from the outside of the heart, i.e. from the in mostheart, A. Ag. 805, cf. E. Hec. 242; ἄκροισι λαίφους κρασπέδοις with mere edges of sail, i.e. under close-reefed sails, Id. Med. 524, cf. Ar. Ra. 999.

b. Geom., of the extremity of a line, ἡ ἐπʼ ἄκραν τὴν ἀποληφθεῖσαν ἀγομένη Apollon. Perg.Con. 4.8: Math., of extremes in a proportion, Pl. Ti. 36a, etc.; εἰς ἄκρον καὶ μέσον λόγον τέμνειν cut in extreme and mean ratio, Euc. 6.30, cf.5 Def. 17.

c. in Tactics, ἄκροι, οἱ, flank men, Ascl. Tact. 1.3, cf. 7.6.

3. inmost, μυελός E. Hipp. 255.

II. of Time, ἄκρᾳ σὺν ἑσπέρᾳ on the edge of evening. i.e. at nightfall, Pi. P. 11.10, cf. ἄκρῃ νυκτί Arat. 775; ἄκρου τοῦ ἔαρος at beginning of spring, IPE 12.352.29 (Cherson., ii B. C.); but usu. denoting completeness, ἄκρου τοῦ θέρεος at mid-summer, Hp. Aph. 3.18; χειμῶνος ἄκρω Theoc. 11.37; ἄκρας νυκτός at dead of night, S. Aj. 285.

III. of Degree, highest in its kind, consummate,

1. of persons, Hdt. 5.112, 6.122; τοξότης ἄ. A. Ag. 628; θεσφάτων γνώμων ἄ. ib.1130; μάντις S. El. 1499; ἰατροί Phld. Lib.p.67 O.; οἱ πάντῃ ἄ., οἱ ἀκρότατοι Pl. Tht. 148c; of any extremes, opp. τὰ μεταξύ, τοῖς ἄ. τὰ ἄ. ἀποδιδόναι Id. R. 478e, cf. Phd. 90a; of classes in a state, Arist. Pol. 1296b39: in moral sense, both good and bad, ἐπιδικάζονται οἱ ἄ. τῆς μέσης χώρας Id. EN 1107b31; αἱ ἄ. [διαθέσεις] ib.1108b14, cf. ἄκρον II.1:—c. acc. modi, ψυχὴν οὐκ ἄ. not strong of mind, Hdt. 5.124; ἄ. τὰ πολέμια 7.111; ἄ. ὀργήν quick to anger, passionate, 1.73; Εὐρώπη ἀρετὴν ἄκρη 7.5: c.gen., οἱ ἄ. τῆς ποιήσεως Pl. Tht. 152e; ἄ. εἰς φιλοσοφίαν R. 499c; περὶ ὁπλομαχίαν Lg. 833e.

2. of things, highest, extreme, συμφορά Alex. 222.4 (cj. Dobree); νηστεία Diph. 54: Sup., Pl. Phlb. 45a.

IV. as Subst., v. ἄκρα, ἄκρον.

V. neut. as Adv., on the top or surface, ἄκρον ἐπὶ ῥηγμῖνος Il. 20.229; ἄκρα δʼ ἐπʼ αὐτᾶς βαθμῖδος AP 7.428.3 (Mel.).

2. reg. Adv. ἄκρως, ἀνεστάλθαι to be turned up at the point, Hp. Mochl. 24.

b. utterly, perfectly, Pl. R. 543a, Hegesand. 4; μόνος ἄκρως Euphro 1.5; σχῆμα ἄ. στρογγύλον absolutely round, Hero Def. 76.

c. skilfully, Phld. Lib.p.27 O.