i Register
In some senses, appall is marked as obsolete. Watch for register when choosing this word.
verb
To fill with horror or indignation; to dismay.
The evidence put forth at the court appalled most of the jury.
The house of peers was somewhat appalled at this alarum.
To make pale; to blanch.
Thanſwere that ye made to me my dere whañ I did ſewe for my poore hartes redreſſe hathe ſo apalld my countenaunce […]
To weaken; to reduce in strength
wine of it owne nature will not congeale and freeze, onely it will loose the strength, and become appalled in extremitie of cold.
To grow faint; to become weak; to become dismayed or discouraged.
To lose flavor or to become stale.