megrzéséért
I’m not able to find any reliable sources that define or describe “megrzéséért” as a known term, concept, place, person, or work. It does not appear in standard dictionaries or encyclopedic references, so there is no established article to present in a neutral, wiki-style form. It may be a misspelling, a dialectal word, or a neologism used in a very specific context.
One possibility is that the intended term is megrendezéséért, which in Hungarian would roughly convey “for
If you can provide clarification—such as the correct spelling, the language, the context where you encountered