verb
also ap·pal əˈpȯl
( appalled ; appalled ; appalling ; appalls also appals )
Etymology: Middle English appallen, apallen, from Middle French appalir, apalir to grow pale, make pale, from Old French, from a- (from Latin ad- ) + palir to grow pale, from Latin pallescere, incho. of pallēre to be pale — more at fallow
intransitive verb
obsolete : to become pale, faint, or weak : fail
therewith her wrathful courage gan appall — Edmund Spenser
transitive verb
: to overcome with consternation or horror : fill with fear, astonishment, or amazement : dismay , shock
appalled at the deadly nature of the duel — R.W.Thorp
Synonyms: see dismay