mutatóin
Mutatóin is a form based on the Hungarian noun mutató, which can mean pointer, indicator, or index. In standard modern Hungarian, mutatóin is not a common or productive inflection; it is sometimes described in linguistic discussions as a dialectal or historical variant of locative marking. Because Hungarian locative endings for in/on places are typically -ban/-ben or -on/-en/-ön (with plural forms changing accordingly), mutatóin stands out as an atypical or archaic development rather than a everyday usage.
Linguistic notes suggest that mutatóin may have arisen from a historical variant in which a locative suffix
Usage and examples in modern Hungarian are limited. When encountered in texts, mutatóin generally appears as