Reduplication

The act of doubling, or the state of being doubled.

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

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.

repetition of the final words of a sentence or line at the beginning of the next

a word formed by or containing a repeated syllable or speech sound (usually at the beginning of the word)

the syllable added in a reduplicated word form

the act of repeating over and again (or an instance thereof)