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
An example of something that might appall are someone's horrible table manners at an upscale fine dining establishment.
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 pallēre 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.