paregmenon

from The Century Dictionary.

• noun In rhet, the employment of several words having a common origin in the same sentence.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Rhet.) Juxtaposing words having a common derivation, as in the phrase "sense and sensibility".

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun rhetoric The juxtaposition of words that have the same roots; using cognate words together, such as curvaceous curves; my loving and beloved wife.; or He's a manly man.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun juxtaposing words having a common derivation (as in `sense and sensibility')