Obecnjího
Obecnjího does not appear as a standard word in Czech dictionaries and is not recognized as a distinct lexical item. It is most likely a misspelling or typographical error for the form obecního, which is the genitive singular of the adjective obecní meaning municipal or related to a municipality. The likely intended form obecn í ho would be obecního with diacritics.
In Czech, obecní (municipal) is used to describe institutions, property, and affairs connected with a municipality.
Orthographically, the standard form is obecního (with the diaeresis on í). Without diacritics, it would be obecního;
In summary, obecnjího is best understood as a misspelling of obecního, the genitive singular form of obecní,