diatessaron /dī-ə-tesˈə-ron, -rən/

1. An arrangement of the four Gospels as a single narrative, esp the earliest, that of Tatian (prob 110–180AD)
2. The interval of a fourth (music)
3. A medicine of four ingredients

• rivel
• rivelled
• rivelling
• rivels
• riven
• river
• riverain
• riverains
• riverbank
• riverbanks
• river basin
• river basins
• river bed
• river beds
• river blindness
• riverboat
• riverboats
• river bottom
• river bottoms
• river card
• rivercraft
• rivercrafts
• river dolphin
• river dolphins
• river-dragon