Lewis & Short

glisco, ĕre, v. n. [perh. kindred with cresco, Paul. ex Fest. s. h. v. p. 98 Müll.; cf. Doed. Syn. 1, p. 21], to grow up, swell up, spread, blaze up, burst out (mostly poet. and in post-Aug. prose; cf. crebresco).

  1. I. Lit.: ignis Alexandri Phrygio sub pectore gliscens, kindling, Lucr. 1, 474; so of fire, Sil. 14, 308; cf. Serv. Verg. A. 12, 9: gliscit, ut ignis oleo, Cic. Hortens. Fragm. ap. Non. 22, 21 (Cic. 10, p. 63 Kays.): suffusa veneno Tenditur, ac sanie gliscit cutis, swells, Stat. Th. 1, 107: asellus paleis gliscit, i. e. grows stout, fat, Col. 7, 1, 1: turtur difficulter, id. 8, 9, 1; cf. Fest. s. v. reglescit, p. 278 Müll.; Col. 2, 5, 1: immensum aucto mari et vento gliscente, Sall. H. 3, 31 Dietsch.
  2. II. Trop., to swell, grow, increase, augment, spread: spectat atrox hostile caput, gliscitque tepentis Lumina torva videns, Stat. Th. 8, 756: hos ubi velle acies et dulci gliscere ferro Dux videt, i. e. ardently long for, id. ib. 12, 639: cf. with inf. (like gestio): gliscis regnare superbus, id. ib. 3, 73: ad juvenilem libidinem copia voluptatum gliscit, ut ignis oleo, * Cic. Hortens. Fragm. ap. Non. 22, 22: gaudium, Pac. ib. 18; Lucr. 5, 1061: furor in dies, id. 4, 1069: clamor, singultus, jurgia, id. 3, 480: rabies, Plaut. Capt. 3, 4, 26: proelium, id. As. 5, 2, 62: seditio, Liv. 42, 2, 2: invidia, id. 2, 23, 2: ne glisceret primo neclegendo bellum, id. 29, 2, 2: saevitia, Tac. A. 6, 19: adulatio, id. ib. 1, 1: flagitia et infamia, id. ib. 14, 15: gloria et pericula, id. ib. 15, 23: multitudo gliscit immensum, grows, increases, id. ib. 4, 27; cf.: gliscerent numero et aliquando minuerentur, id. ib. 4, 5 fin.: postquam eo magnificentiae venerit (res publica), gliscere singulos, grow in wealth, id. ib. 2, 33: gliscentibus negotiis duo praetores additi, id. ib. 11, 22: fama gliscit gressu, Sil. 4, 6.
    Note: In pass.: ut major invidia Lepido glisceretur, may grow, increase, Sempron. Asellio ap. Non. 481, 5: cum te salvum video, gliscor gaudio, Turp. ap. Non. 22, 13 (Com. Fragm. v. 191 Rib.).