Fear.
guru
Will one may have trepidation in using this exact word in this sentence. One would use the word trepidation when setting a scene in a story, where a character is worried about entering dark woods at night for example.
I felt another earthquake beginning, and I was overcome with trepidation. Trepidation caused me to allow all the skiers behind me to go down the formidable slope first.
I think they want dice but that's not really right because one of them is more properly a die.
An antonym of "trepidation" is "confidence." While trepidation refers to a feeling of fear or anxiety about something that may happen, confidence conveys a sense of assurance and certainty in one’s abilities or outcomes.
it's a noun, it doesn't have a past tense.
I don't believe there is a 3 letter word for fear in English. The closest would be 'awe' and that is not exactly the same meaning.
his propinquity to danger filled him with trepidation
phobia, dread, terror, fright, panic, horror, trepidation.
"With trepidation, I entered the principle's office".
With trepidation , I approached my formidable adversary to challenge her about the intimations she had been voicing about my character. His trepidation during thunderstorms was so intense that he broke out into cold sweats and panic attacks. We must face the enemy without trepidation if we are to win this battle.
A feeling of fear or agitation about something that may happen.