An example of something that might appall are someone's horrible table manners at an upscale fine dining establishment.
Origin of appallMiddle English apallen ; from Old French apalir ; from a-, to + palir, to grow pale ; from Classical Latin palescere ; from pallere, to be pale: see pale
transitive verbap·palled, ap·pall·ing, ap·palls
Origin of appallMiddle English apallen, to grow faint, from Old French apalir : a-, to (from Latin ad-; see ad–) + palir, to grow pale (from pale, pale, from Latin pallidus, from pall&emacron;re, to grow pale; see pel-1 in Indo-European roots).
(third-person singular simple present appalls, present participle appalling, simple past and past participle appalled)
- To depress or discourage with fear; to impress with fear in such a manner that the mind shrinks, or loses its firmness; to overcome with sudden terror or horror; to dismay.
- The sight appalled the stoutest heart.