Accuse is etymologically related to Cause. Cause is a type of Origin. Origin is related to Species. Oak is a type of Species. 
Birthday would make you want to Buy. Birthday is related to Love. Love is related to Peace. 
Accuse --EtymologicallyRelatedTo--> Cause --IsA--> Origin <--RelatedTo--> Species <--IsA-- Oak 
Buy <--CausesDesire-- Birthday <--RelatedTo--> Love <--RelatedTo--> Peace 