Lonmai Luna: Morphology: Reduplication: Productive full and partial reduplication
Nouns indicating persons use full reduplication as one way to form plural.
The meaning of adjectives(and sometimes other verbs) may be intensified by applying reduplications.
The diminutive for of some nouns are formed by the reduplication of the first syllable; the frequentative form of some verbs are formed by the reduplication of the last syllable.