overanxiety

noun

over·​anx·​i·​ety ˌō-vər-aŋ-ˈzī-ə-tē 

plural overanxieties

: an excessive amount or degree of anxiety

a nervous musician's overanxiety about their performance

If you begin to feel unwell during an examination, it may be as a result of overanxiety, which can overwhelm a student.

—Brian Mooney

… one fell overboard in his overanxiety to board the dinghy.

—The Hamilton (Ontario) Spectator

Word History

First Known Use

1826, in the meaning defined above