(verb) : col-lābor (conl-), lapsus (or labsus), 3
* To fall together, to fall in ruins; esp. of buildings, to fall in, fall from age (in the ante-Aug. period very rare; not in Cic., Hor., or Quint.).
* Prop., Liv. 35, 9, 3: moenia subito collapsa ruinā sunt,id. 29, 18, 17; Suet. Aug. 30; id. Claud. 25; id. Calig. 21: fastigium domūs collabitur,id. Caes. 81: qui collapsā jacuere ruinā,Sil. 7, 727: succisis asseribus collapsus pons,Liv. 44, 5, 6. postquam conlapsi cineres, Verg. A. 6, 226: eodem anno duodecim celebres Asiae urbes collapsae nocturno motu terrae,Tac. A. 2, 47: AEDES VETVSTATE COLLAPSA,Inscr. Orell. 26.—Of persons, to fall or sink down in a swoon or in death: suscipiunt famulae collapsaque membra Marmoreo referunt thalamo,Verg. A. 4, 391; 8, 584; Ov. M. 7, 826; 5, 96; 6, 295; Tac. A. 2, 31; Suet. Ner. 42; Curt. 4, 10, 19; 7, 6, 22; 8, 2, 39; Petr. 94; Val. Fl. 7, 152; Stat. Achill. 1, 195; cf.: ferro collapsa,Verg. A. 4, 664.
* Transf.: ossa morbo collapsa,Verg. G. 3, 485: collapsa tempora, oculi concavi, temples fallen in or sunken, Cels. 2, 6: iter urinae senectute collapsum,id. 7, 26.
* Trop. (very rare): in corruptelam suam,Plaut. Truc. 3, 2, 3: ira in se ipsa collapsa,Val. Max. 6, 2, 10: in fata,Cod. Just. 5, 14, 9.

s. TLL