Accelerate is a synonym of Advance. Advance is a type of Lend. Lend is etymologically related to Round. 
Reply is related to Feedback. Feedback is a type of Answer. Answer is related to Shade. Shade is related to Absence. 
Accelerate <--Synonym--> Advance --IsA--> Lend --EtymologicallyRelatedTo--> Round 
Reply <--RelatedTo--> Feedback --IsA--> Answer <--RelatedTo--> Shade <--RelatedTo--> Absence 