réduplication
Reduplication is a morphological process in linguistics where a morpheme is repeated, either in its entirety or partially. This repetition can serve various grammatical or semantic functions. In some languages, reduplication is used to indicate plurality. For example, in Tagalog, the word "tao" meaning "person" becomes "mga tao" where "mga" is a plural marker, but in other contexts, full reduplication can indicate plurality, like "bahay" (house) potentially becoming "bahay-bahay" (houses).
Another common function of reduplication is to intensify meaning or indicate that an action is performed repeatedly
Reduplication can be full, where the entire morpheme is repeated, or partial, where only a part of