póniejszym
Póniejszym is an archaic Polish adjective-form used in the instrumental singular masculine to mean the present or this (in reference to a document, matter, or context). It is a historical variant of the modern forms associated with the demonstrative nis/ne prefix that eventually gave rise to niniejszy and niniejszym. In contemporary Polish, póniejszym is regarded as obsolete, and niniejszym serves as the standard equivalent.
Origin and form: The word originates from an older stylistic tradition that employed the prefix po- with
Usage and Register: Póniejszym appears primarily in historical, legal, or literary texts. It functioned as a
Modern equivalents and distinctions: The modern standard for “this present” is niniejszy (nominative) and niniejszym (instrumental).