Akademik

ap|pall
ap|pall «uh PL», verb, -palled, -pall|ing.
–v.t.
to fill with horror or fear; dismay; terrify: »

The thought of another war appalled us. She was appalled when she saw the river had risen to the doorstep.

–v.i. Obsolete.
1. to become pale.
2. a) to fail. b) to lose flavor; pall.
[< Old French apallir become, or make, pale < a- to + pale pale < Latin pallidus. See related etym. at pale1. (Cf.pale)]

Useful english dictionary. 2012.