icznych
izung is a term I can help with.
zychnych is not a standalone word in Polish. It is an inflectional ending used in Polish morphology,
In grammatical descriptions, icznych is described as a characteristic inflection for adjectives of the -iczny type
Because niejszych is a suffixal inflection rather than a word with its own meaning, it appears primarily
See also: Polish language, noun-adjective agreement, adjective declension, suffix in linguistic morphology.