Thrive is a synonym of Boom. Boom is etymologically related to Beam. you are likely to find Beam in/at/on Gym. Gym is related to Fit. 
Devastating is related to War. War is related to Dispute. Dispute is related to Argument. 
Thrive <--Synonym--> Boom --EtymologicallyRelatedTo--> Beam --AtLocation--> Gym <--RelatedTo--> Fit 
Devastating <--RelatedTo--> War <--RelatedTo--> Dispute <--RelatedTo--> Argument 