2) to fear, be afraid
Part of Speech: verb
Strengthened from a primary word τρέω treô (to "dread", "terrify"); to "tremble" or fear: - be afraid, trembling.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root τρέμω; click on the second column to search for that grammatical form of the root τρέμω; click on the third column to search for that word and grammatical form; click on the total to search for the root τρέμω.