σπουδ-αῖος · spoud-aios — LSJ
in haste, quick, σ. τοὺς πόδας Poll. 1.197, 3.149; τὸ σ. τῆς πορείας Polyaen. 6.24:—but in ordinary use denoting energy or earnestness:
of persons, earnest, serious, X. Cyr. 2.2.16 (Sup.), cf. Smp. 8.3; active, zealous, in canvassing, Plu. Aem. 1.
good, excellent in their several kinds, Hdt. 8.69; opp. φαῦλος, Pl. Lg. 757a, 814e, Arist. Po. 1448a2; ἀκροαταὶ -ότεροι Isoc. 12.271; σ. αὐλητής, opp. ἄνθρωπος μοχθηρός, Antisth. ap. Plu. Per. 1; κιθαριστής Arist. EN 1098a9; σκυτεύς Id. EE 1219a22; ἀνδράποδον D. 9.31; σ. τὴν τέχνην X. Mem. 4.2.2; περί τι Pl. Lg. 817a.
in moral sense, good, opp. πονηρός, X. HG 2.3.19; opp. φαῦλος, Id. Cyr. 2.2.24, Zeno Stoic. 1.52; οἱ σ. Λακεδαιμονίων X. HG 3.1.9; σ. τὰ ἤθη Isoc. 1.4; τῷ ἀρετὴν ἔχειν σ. λέγεται Arist. Cat. 10b8, cf. EN 1166a13, Top. 131b2; σπουδαῖον = ἀγαθον, Id. EN 1136b8, 1137b4: generally, of all virtuous objects or qualities, Id. Metaph. 1021b24, 1051b24, EN 1151a27, al.
of things, worth serious attention, weighty, χρῆμα, πρῆγμα, Thgn. 65, 70, 116, etc.; τὰ -έστερα (-έστατα) τῶν πρηγμάτων Hdt. 1.8, 133 (v.l. -ότερα, -ότατα), cf. Iisoc. 2.50; ταῦθʼ ὑμῖν σπουδαιότατʼ ἐστίν D. 24.4; opp. γελοῖος, Ar. Ra. 392 (lyr.); τί γελᾷς ἐπὶ σπουδαίοις πράγμασιν; Pl. Euthd. 300e.
good of its kind, excellent, σ. νομαί Hdt. 4.23; ἡ σπουδαιοτάτη [τῶν ταριχεύσεων] the most elaborate, costliest, Id. 2.86, cf. PSI 4.413.26 (iii B.C.); ἡ ἰσηγορίη χρῆμα σ. Hdt. 5.78; λόγος σ. Pi. P. 4.132; μουσική Pl. Lg. 668b; τιμαί Id. R. 519d; σπέρματα X. Mem. 4.4.23; δῶρον οὐ σ. εἰς ὄψιν not goodly to look on, S. OC 577; τραγῳδία σ. Arist. Po. 1449b17; σ. ὑπόδημα Id. EE 1219a22:— a play on senses II.1 and II.2 in Arist. EN 1176b25, 1177a3; ironically, σ. χρῆμα a fine thing, h.Merc. 332.
Adv. σπουδαίως with haste or zeal, seriously, earnestly, well, X. Cyr. 1.3.9, Pl. Cra. 406b, etc.: Comp. -ότερον X. Cyr. 2.3.20; -οτέρως Plu. Nob. 15: Sup. τὰ -ότατα most carefully, in the best way, Hdt. 2.86.—Besides the regul. Comp. and Sup., we find in Ion. the forms -έστερος, -έστατος, Hdt. 1.8, 133, Hecat. ap. Eust. 1441.15, Eus.Mynd. 4.