The word "trepidation" originates from the Latin term "trepidatio," which means "a trembling" or "alarm." The Latin verb "trepidare" means "to tremble" or "to be agitated." This indicates a sense of nervousness or fear. The word passed into French as "trépidation" before entering the English language in the late 16th century. In English, "trepidation" maintains its original sense of fear or apprehension, often accompanied by a physical trembling or shaking.