Midnight is derived from Night. Night is a synonym of Sleep. Sleep requires Calm. 
Random is etymologically related to Run. Run is the opposite of Rise. Rise is a different concept from Lower. 
Midnight --DerivedFrom--> Night <--Synonym--> Sleep --HasPrerequisite--> Calm 
Random --EtymologicallyRelatedTo--> Run <--Antonym--> Rise <--DistinctFrom--> Lower 