Apology is related to Regret. Regret is etymologically related to Greet. Greet is related to Meet. 
Hike is a synonym of Raise. Raise is related to Build. Build is a type of Oversee. Oversee is derived from See. 
Apology <--RelatedTo--> Regret --EtymologicallyRelatedTo--> Greet <--RelatedTo--> Meet 
Hike <--Synonym--> Raise <--RelatedTo--> Build --IsA--> Oversee --DerivedFrom--> See 