nienawidziy
Nienawidziy is not a standard Polish word. It is not found in reputable Polish dictionaries and is generally regarded as a misspelling or nonstandard transliteration of forms of the verb nienawidzić, which means to hate.
In standard Polish, the infinitive is nienawidzić. The present tense forms include nienawidzę (I hate), nienawidzisz
Usage notes: If you encounter the form nienawidziy, it is most likely a typographical or orthographic error
Etymology: The verb nienawidzić is a standard Polish verb meaning “to hate,” built with the negating prefix
See also: nienawidzić, nienawiść, hate in Polish grammar and conjugation.