Original is a synonym of Initial. Initial is related to Cause. Cause is related to Motive. 
Butt is a synonym of Goat. Goat is part of Tribe. Tribal is derived from Tribe. Tribal is related to Chief. 
Original <--Synonym--> Initial <--RelatedTo--> Cause <--RelatedTo--> Motive 
Butt <--Synonym--> Goat --PartOf--> Tribe <--DerivedFrom-- Tribal <--RelatedTo--> Chief 