Sound Device
Leonine Rhyme
Named (perhaps apocryphally) after Pope Leo or a medieval poet named Leoninus. Common in Latin hexameters of the 12th century; occasional in English verse.
Definition
A form of internal rhyme in which the word immediately before the caesura rhymes with the final word of the line.
Example
'The moaning and groaning' — the medial and final words carry the same rhyme sound.