pentalogy /pen-talˈə-ji/

1. A pentad, esp of published works
2. A series of five related books

• out-porters
• outports
• outpost
• outposts
• outpour
• outpoured
• outpourer
• outpourers
• outpouring
• outpourings
• outpours
• outpower
• outpowered
• outpowering
• outpowers
• outpray
• outprayed
• outpraying
• outprays
• outprice
• outpriced
• outprices
• outpricing
• outprize
• outprized