trepidationem
trepidationem is a Latin form of trepidatio, meaning “alarm, trepidation”. It is the accusative singular feminine noun.
Found 40 times in the Latin texts on Socratos.
Where it is used
Tacitus, Agricola 26.1: Quod ubi cognitum hosti, mutato repente consilio universi nonam legionem ut maxime invalidam nocte adgressi, inter somnum ac trepidationem caesis vigilibus inrupere.
All forms of trepidatio (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.