Lewis & Short

cŏ-ălesco, ălŭi, ălĭtum (part. perf. only in Tac. and subseq. writers; contr. form colescat, Varr. R. R. 1, 41, 2: colescere, Lucr. 6, 1068: coluerunt, id. 2, 1061 Lachm. N. cr.), v. inch. n. (most freq. since the Aug. per.; never in Cic.).

  1. I. To grow together with something, to unite.
    1. A. Prop., Lucr. 2, 1061: saxa vides solā colescere calce, id. 6, 1068: ne prius exarescat surculus quam colescat, is united, sc. with the tree into which it is inserted, Varr. R. R. 1, 41, 2: gramen, Col. 2, 18, 5: semen, id. 3, 5, 2: triticum, id. 2, 6 fin.: sarmentum, id. 3, 18, 5 and 6; Dig. 41, 1, 9: arbor cum terra mea coaluit, ib. 39, 2, 9, § 2: cilium vulnere aliquo diductum non coalescit, Plin. 11, 37, 57, § 157; cf. vulnus, id. 9, 51, 76, § 166, and v. II. A. infra.
      In part. perf.: cujus ex sanguine concretus homo et coalitus sit, is formed or composed, Gell. 12, 1, 11; App. Dogm. Plat. 1, p. 171, 38.
    2. B. Trop., to unite, agree together, coalesce (so in the histt., esp. Liv. and Tac., very freq.); absol.: Trojani et Aborigines facile coaluerunt, Sall. C. 6, 2; id. J. 87, 3: solidā fide, Tac. H. 2, 7: ut cum Patribus coalescerent animi plebis, Liv. 2, 48, 1: animi coalescentium in dies magis duorum populorum, id, 1, 2, 5.
      With in and acc.: multitudo coalescere in populi unius corpus poterat, Liv. 1, 8, 1: in unum sonum, Quint. 1, 7, 26: in bellum atrox, Tac. A. 3, 38: in nomen nostrum, id. ib. 11, 24: in hunc consensum, id. H. 2, 37; cf.: coalesce-re ad obsequium, id. A. 6, 44: brevi tantā concordiā coaluerant omnium animi, ut, etc., Liv. 23, 35, 9; cf. id. 1, 11, 2; 26, 40, 18: vixdum coalescens foventis regnum (the figure taken from the growing together of a wound), id. 29, 31, 4; cf.: bellis civilibus sepultis coalescentibusque reipublicae membris, Vell. 2, 90, 1; 4, 8, 5: (voces) e duobus quasi corporibus coalescunt, ut maleficus, Quint. 1, 5, 65; id. 2, 9, 3 (v. the passage in connection): quieti coaliti homines, i. e. united in a peaceful manner, Amm. 14, 5, 7.
  2. II. To grow firmly, strike root, increase, become strong.
    1. A. Prop.. forte in eo loco grandis ilex coaluerat inter saxa, had sprung up, Sall. J. 93, 4; * Suet. Aug. 92: dum novus in viridi coalescit cortice ramus, Ov. A. A. 2, 649.
    2. B. Trop., to grow firm, take root, be consolidated: dum Galbae auctoritas fluxa, Pisonis nondum coaluisset, Tac. H. 1, 21.
      In part. perf.: coalitam libertate irreverentiam eo prorupisse, strengthened, Tac. A. 13, 26; so id. 14, 1: libertas, confirmed, id. H. 4, 55: coalito more asper, i. e. by inveterate habit, Amm. 14, 10, 4: pravitas, id. 15, 3, 8.