IPA: /ˌoʊvərˈɑːrəl/
KK: /oʊvərˈɑːrəl/
A state of being excessively excited or stimulated, often leading to heightened emotional or physical responses.
The athlete experienced overarousal before the big game, making it difficult to focus.
Overarousal → It is formed from "over-" (meaning excessively) and "arousal" (from Latin "arousal" which is derived from "arousare", meaning to awaken or stir up). The word "overarousal" refers to a state of excessive awakening or stimulation.
Think of being excessively awake or stimulated — 'over-' means excessively, and 'arousal' means to awaken.