Send is a synonym of Throw. Throw is a synonym of Shed. Skin is etymologically related to Shed. 
Doorway is related to Gate. Gate is related to Wood. Wood is related to Make. Make is a type of Amount. 
Send <--Synonym--> Throw <--Synonym--> Shed <--EtymologicallyRelatedTo-- Skin 
Doorway <--RelatedTo--> Gate <--RelatedTo--> Wood <--RelatedTo--> Make --IsA--> Amount 