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>.
[Blacks Law 8th]
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>.
[Blacks Law 8th]