Drift is etymologically related to Drive. Drive is related to Test. Test is related to Short. Short is related to Minute. 
Icon is a type of Artifact. Extra is a type of Artifact. 
Drift --EtymologicallyRelatedTo--> Drive <--RelatedTo--> Test <--RelatedTo--> Short <--RelatedTo--> Minute 
Icon --IsA--> Artifact <--IsA-- Extra 