Spirit is etymologically related to Inspire. Inspire is a type of Stimulate. Stimulate is a synonym of Encourage. Encouraging is derived from Encourage. 
Advantage is a synonym of Pro. 
Spirit --EtymologicallyRelatedTo--> Inspire --IsA--> Stimulate <--Synonym--> Encourage <--DerivedFrom-- Encouraging 
Advantage <--Synonym--> Pro 