There are two types of iteration in Pichi. Reduplication is only attested with dynamic verbs and expresses verbal number, hence notions such as iterative aspect, and is very often found in clauses involving more than one participant. Reduplication involves the tonal derivation characteristic of compounding. It is formally no different from compounding, except that the left component is a copy of the head (base). Repetition, the second type, is found with all major word classes. It renders emphatic and intensifying meanings. It involves syntactic concatenation rather than a morphological process. The word in question can be repeated more than once for increased emphasis and dramatic effect.
Source: Yakpo 2009: 325
Source: Yakpo 2009: 148