trĕmesco — Lewis & Short
trĕmesco (trĕmisco), ĕre, v. n. and
I a. inch. [tremo], to begin to shake or tremble, to shake, quake, or tremble for fear; to quake or tremble at a thing (poet.):
plaustri concussa tremescunt Tecta viam propter,Lucr. 6, 548:
tonitruque tremescunt Ardua terrarum,Verg. A. 5, 694:
jubeo tremescere montes,Ov. M. 7, 205:
latitans omnemque tremescens Ad strepitum,id. ib. 14, 214.—With acc.:
sonitumque pedum vocemque tremesco,Verg. A. 3, 648:
Phrygia arma,id. ib. 11, 403.—With object-clause:
telum instare tremescit,Verg. A. 12, 916.— With rel.-clause:
quercum nutantem nemus et mons ipse tremescit, Quā tellure cadat,Stat. Th. 9, 535.