Regard is etymologically related to Reward. Regard is related to Feeling. Feeling is related to Fear. 
Usual is a synonym of Ordinary. Ordinary is a different concept from Rare. Rare is similar to Raw. Raw is similar to Unfair. 
Reward <--EtymologicallyRelatedTo-- Regard <--RelatedTo--> Feeling <--RelatedTo--> Fear 
Usual <--Synonym--> Ordinary <--DistinctFrom--> Rare <--SimilarTo--> Raw <--SimilarTo--> Unfair 