phobism
/ˈfoʊbɪzəm/Definitions
1. noun
a strong aversion or dislike, often irrational, towards something
“His phobism of spiders made it difficult for him to watch the horror movie.”
2. noun
a fear or aversion resulting from a past traumatic experience
“Her phobism of enclosed spaces was a lingering effect of the accident she experienced as a child.”