polyptoton
/ˌpɑlɪpˈtoʊtɑn/
noun
- A rhetorical device in which words from the same root are repeated in different grammatical forms (e.g., "love" and "lover").
- Shakespeare often employed polyptoton, as in 'Love is not love which alters when it alteration finds.'
- The slogan 'Choose your choice' is a simple example of polyptoton.
- In the phrase 'I dreamed a dream,' the writer uses polyptoton for emotional effect.