Bible Dictionaries
Whereat

Webster's Dictionary

(1):

(adv.) At which; upon which; whereupon; - used relatively.

(2):

(adv.) At what; - used interrogatively; as, whereat are you offended?

Bibliography Information
Webster, Noah. Entry for 'Whereat'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​w/whereat.html. 1828.