reduplication

n. act of copying, act of doubling; repetition, act of doing again

Reduplication, in linguistics, is a morphological process by which the root or stem of a word, or only part of it, is repeated. Reduplication is used both in inflections to convey a grammatical function, such as plurality, intensification, etc., and in lexical derivation to create new words. It is often used when a speaker adopts a tone more "expressive" or figurative than ordinary speech and is also often, but not exclusively, iconic in meaning. Reduplication is found in a wide range of languages and language groups, though its level of linguistic productivity varies.
See more at Wikipedia.org...

Noun
1. repetition of the final words of a sentence or line at the beginning of the next
(synonym) anadiplosis
(hypernym) repetition
2. the syllable added in a reduplicated word form
(hypernym) syllable
3. a word formed by or containing a repeated syllable or speech sound (usually at the beginning of the word)
(hypernym) word
4. the act of repeating over and again (or an instance thereof)
(synonym) reiteration
(hypernym) repetition, repeating

n. reduplication, repetition

(n.)
The doubling of a stem or syllable (more or less modified), with the effect of changing the time expressed, intensifying the meaning, or making the word more imitative; also, the syllable thus added; as, L. tetuli; poposci.
  

(n.)
The act of doubling, or the state of being doubled.
  

(n.)
A figure in which the first word of a verse is the same as the last word of the preceding verse.