whereat
whereat,conj. 1. At or toward which (the point whereat he was aiming). 2. As a result of which; whereupon (Pettrucione called Bickley a scurrilous name, whereat a fistfight broke out).
whereat,conj. 1. At or toward which (the point whereat he was aiming). 2. As a result of which; whereupon (Pettrucione called Bickley a scurrilous name, whereat a fistfight broke out).