Essay is a synonym of Try. Try is etymologically related to Tear. Tear is related to Salt. Salt is a type of Sprinkle. 
Working is related to Shake. Shake is related to Rapid. 
Essay <--Synonym--> Try --EtymologicallyRelatedTo--> Tear <--RelatedTo--> Salt --IsA--> Sprinkle 
Working <--RelatedTo--> Shake <--RelatedTo--> Rapid 