megkettzése
Megkettzése is a Hungarian term that denotes the act of making something twofold or doubling. The standard spelling in most contexts is megkettőzése; megkettzése is commonly understood as a misspelling or regional variant. Etymologically, it combines the prefix meg- with kettő (two) and the noun-forming suffix -zése, creating a noun that describes the process of doubling.
The concept applies across several domains. In linguistics, it can refer to a process of doubling sounds
Variants and related terms include kétszerezés and megkétszerezés, which are more common in formal technical writing