noun / verb
fright
FRYTE/fraɪt/
Sudden intense fear, or causing such fear.
She recoils in fright as a snake emerges from beneath the pot.

Etymology
Old English fyrhtu covered fear and dread generally. As fear became the usual English word for that feeling, fright remained especially associated with sudden terror.
In context
I was in a terrible fright and kept as far as I could from the edge