Jonkisz
Jonkisz is a Polish surname. Surnames in Poland often originate from a variety of sources, including patronymic origins (derived from a father's name), toponymic origins (derived from a place name), occupational origins (derived from a person's profession), or descriptive origins (based on a physical characteristic or nickname).
The meaning and etymology of the surname "Jonkisz" are not widely documented and may require further research within Polish genealogical resources. It is possible the name has variations in spelling or is derived from a lesser-known Polish word or regional dialect. Genealogical databases and historical records from Poland could provide more specific information about the origins of this particular surname and its distribution throughout Polish history.