Govern is a synonym of Regulate. Regulate is etymologically related to Rail. Rail is a synonym of Track. 
Machine can be used for Dump. Machine can be used for Fold. Fold is a synonym of Close. Lock can be used for Close. 
Govern <--Synonym--> Regulate --EtymologicallyRelatedTo--> Rail <--Synonym--> Track 
Dump <--UsedFor-- Machine --UsedFor--> Fold <--Synonym--> Close <--UsedFor-- Lock 