Lewis & Short

luxŭrĭo, āvi, ātum, 1, v. n., and luxŭ-rĭor, ātus, 1, v. dep. (cf. Quint. 9, 3, 7) [luxuria], to be rank, luxuriant, abound to excess (not in Cic. or Cæs.).

  1. I. Lit.: ager assiduā luxuriabat aquā, Ov. F. 4, 644: luxuriat Phrygio sanguine pinguis humus, id. H. 1, 53: cacumina virgarum ne luxurientur, Col. Arb. 11: ne (caules) in frondem luxurient, Plin. 19, 6, 34, § 113: in patulas comas, Ov. de Nuce, 20: ut seges in pingui luxuriabit humo, id. A. A. 1, 360.
    1. B. Transf.
      1. 1. To wanton, sport, skip, bound, frisk: (equus) luxurians, Verg. A. 11, 497: luxuriat pecus, Ov. F. 1, 156: leo luxurians, Val. Fl. 6, 613.
      2. 2. To have in abundance or excess, to abound in: luxuriatque toris animosum pectus, Verg. G. 3, 81: faciem Deliciis decet luxuriare novis, Ov. H. 16, 191.
      3. 3. To swell, enlarge, grow rapidly: membra luxuriant, Ov. M. 7, 292.
  2. II. Trop.
    1. A. Of style or language, to be luxuriant, to be too fruitful, to run riot: luxuriantia compescet, Hor. Ep. 2, 2, 122; cf.: luxuriantia astringere (stilo), Quint. 10, 4, 1.
    2. B. To be wanton or licentious, to indulge to excess, to revel, run riot, be dissolute: ne luxuriarentur otio animi, Liv. 1, 19: Capuam luxuriantem felicitate, id, 23, 2; cf. Flor. 2, 15: libertate luxuriare, Curt. 10, 7, 11: vereor ne haec laetitia luxuriet. Liv. 23, 12: usus luxuriantis aetatis, Macr. S. 7, 13, 11.