Perceive is etymologically related to Conceive. Perceive is etymologically related to Receive. Receive is the opposite of Reply. 
Waist is related to Slip. Slip is related to Loss. 
Conceive <--EtymologicallyRelatedTo-- Perceive --EtymologicallyRelatedTo--> Receive <--Antonym--> Reply 
Waist <--RelatedTo--> Slip <--RelatedTo--> Loss 