cudzej
Cudzej is a historical or dialectal form found in Polish that represents a possessive-like modifier meaning “belonging to someone else” or “other people’s.” It is encountered mainly in older texts and in certain regional varieties, rather than in contemporary standard Polish. In modern usage, the common forms of the possessive determiner relate to cudzy (masculine), cudza (feminine), and cudze (neuter), with the genitive plural cudzych; cudzej appears primarily as an archaic or irregular inflectional variant rather than a productive part of the current language.
Etymology and relation to related forms: cudzej is derived from the same root as cudzy, which is
Usage and status: Today, cudzej is generally not part of standard, contemporary Polish grammar. It is cited
See also: cudzy, cudze, cudzoziemski, чужой.