[{"Bold_text": "conjunction", "List Items": ["Literary.at which:a reception whereat many were present.to which; whereupon :a remark whereat she quickly angered.", "at which:a reception whereat many were present.", "to which; whereupon :a remark whereat she quickly angered."]}, {"Bold_text": "adverb", "List Items": ["Archaic.in reference to which."]}]