praetrepido
praetrepido, to tremble or flutter in anticipation
prae-trepido, āre, hastig eilen, dum praetrepidant, Iuvenc. sel. frgm. 15, 3 (Spicil. Solesm. 1. p. 238): praetrepidans, in hastiger Eile, Catull. 46, 7.
prætrĕpĭdō, (16) āre, intr., être affairé, pressé, agité : Ps. Juvenc. Sel. Frg. 507.