Lewis & Short

concinnē, adv., v. concinnus, adv., 1.

con-cinnus, a, um, adj. [etym. dub.; acc. to Non. p. 43, 21, and p. 59, 30, from cinnus], fitly, skilfully put together or joined, well adjusted, beautiful (class.; esp. freq. in Cic. of discourse).

  1. I. Object.
    1. A. Prop.: sat edepol concinna est (virgo) facie, Plaut. Pers. 4, 3, 77: Samos ( = venusta, elegans), pretty, Hor. Ep. 1, 11, 2: tectorium, Cic. Q. Fr. 3, 1, 1, § 1: helicis folia angulosa et concinniora (for εὐρυθμότερα, in Theophr. H. P. 3, 18), Plin. 16, 34, 62, § 148: heluo, elegant, Cic. Pis. 10, 22.
    2. B. Trop., of discourse, beautiful, elegant, polishcd, neat, striking, etc.: (oratio) concinna, distincta, ornata, festiva, etc., Cic. de Or. 3, 25, 100: sententiae non tam graves et severae quam concinnae et venustae, id. Brut. 95, 325; cf.: concinnae sententiae (opp. probabiles), id. Or. 19, 65; and: concinnae acutaeque sententiae, id. Brut. 78, 272: versus, Hor. Ep. 2, 1, 74: sermo, id. S. 1, 10, 23: reditus ad rem aptus et concinnus, Cic. de Or. 3, 53, 203: transgressio verborum, id est hyperbaton, Quint. 9, 3, 91.
      1. 2. Transf. to the person: alii in eādem jejunitate concinniores, id est, faceti, florentes etiam et leviter ornati, Cic. Or. 6, 20; Nep. Epam. 5, 1: concinnus et elegans Aristo, Cic. Fin. 5, 5, 13; cf. also of the painter Nicophanes: elegans et concinnus (pictor), Plin. 35, 10, 36, § 111.
  2. II. Subject. ( = commodus, II.): concinnus alicui, suited to, fit, appropriate for; of persons, suiting one’s self to, courteous, pleasing, etc. (rare): viris Venus ut concinnior esset, * Lucr. 4, 1276: concinnus amicis, Hor. S. 1, 3, 50.
    1. * B. Concinnum est = commodum est: age, age, ut tibi maxime concinnum est, it is pleasing, agreeable, Plaut. Mil. 4, 2, 33.
      Adv.
      1. 1. In the form concinnē, fitly, beautifully: concinne et lepide vestita, Plaut. Ep. 2, 2, 38.
        Of discourse, elegantly, neatly, etc., Cic. de Or. 2, 19, 81; id. N. D. 2, 27, 69; id. Rosc. Com. 16, 49.
        Comp.: eloqui, Aus. Grat. Act. ad Gratian. 8: saliunt aquae, Fronto de Orat. 1, p. 242 Mai.
        Sup. of the adj. and adv. apparently not in use.
      2. 2. In the form concinnĭter, Gell. 18, 2.