kettzdés
Kettzdés is not a standard Hungarian word and does not appear in major dictionaries. It is likely a misspelling or a rare variant of kettődés or kettőzés. If the intended term is kettődés, it refers to a twofold state or doubling of something, used across disciplines to indicate that a quantity or property has become twice as large or numerous. If the intended term is kettőzés (also seen as kettőződés), it denotes the act or process of duplication or doubling, and is used in contexts such as linguistics to describe reduplication, or in biology when translated as duplication (duplikáció).
In linguistics, reduplication is the process by which a morpheme or word is repeated to convey aspect,
Etymology traces kettődés and kettőzés to the root kettő (two) plus the suffix dés or zés, forming
See also: kettős, kettő, kettőzés, kettőződés, reduplication, duplikáció.