reduplicate

To repeat over and again; redouble.

To double (the initial syllable or all of a root word) to produce an inflectional or derivational form.

To form (a new word) by doubling all or part of a word.

To be doubled.

Doubled.

To double again; multiply; repeat.

In philology, to repeat, as a syllable or the initial part of a syllable (usually a root-syllable). See reduplication.

In philology, to be doubled or repeated; undergo reduplication: as, reduplicating verbs.

Redoubled; repeated; reduplicative.