Morphology is marked by copying part or all of another segment in a word. For example, in Pangasinan (Rubino 2008), the word for <i>man</i> is <i>too</i> and the word for <i>people</i> is <i>totoo</i>. 

<br><br><b>Reference</b><br>
Rubino, Carl. 2008. Reduplication.
In Haspelmath et al. (2008), chapter 27.
Available online at <a href="http://wals.info/feature/27">http://wals.info/feature/27</a href>.