Whereat (1 Occurrence)

... 1. (adv.) At which; upon which; whereupon; -- used relatively. 2. (adv.) At what; -- used interrogatively; as, whereat are you offended? ...Whereat (1 Occurrence). ... biblethesaurus.org/w/whereat.htm - 6k

Whereby (46 Occurrences)

biblethesaurus.org/w/whereby.htm - 20k

Whereas (55 Occurrences)

biblethesaurus.org/w/whereas.htm - 24k