Definitions for "Polyptoton"
A figure by which a word is repeated in different forms, cases, numbers, genders, etc., as in Tennyson's line, -- "My own heart's heart, and ownest own, farewell."
repetition of a word in a different case or inflection in the same sentence; "My own heart's heart"
A type of figure which takes a word and echoes it with another word that is derived from the same root. Example: Thou bloodless remnant of that royal blood! -- Richard III, Act II, Scene ii, Line 7