tras त्रस्

Definition: cl.1. tr/asati- () , cl.4. trasyati- ( etc.; Epic also A1.; perfect tense 3. tatrasur-[ ] or tresur-[ ] ) to tremble, quiver, be afraid of (ablative genitive case,rarely instrumental case) and (parasmE-pada f. tar/asantī-) etc.: Causal trāsayati- (Epic also A1.) to cause to tremble, frighten, scare ; ([ confer, compare Zendtares;; Latin terreo.])