wiadomych

Wiadomych is the genitive plural form of the Polish adjective wiadomy, meaning known, familiar, or informed. It is used when the adjective modifies a masculine personal noun in the genitive plural, or in fixed expressions where the referent is presumed to be known to the speaker. Common phrases include z wiadomych źródeł (from known sources) and spośród wiadomych osób (among known people). In standard Polish, wiadomych appears mainly in formal or semi-formal prose, journalism, law, and other contexts where it signals acknowledged or readily accepted information.

Etymology and relation to other forms: wiadomych derives from wiadomy, which traces to the Slavic root related to knowledge. The term shares cognates across Slavic languages, such as Russian vedomyy (ведомый) and Ukrainian vidomyi (відо́мий), reflecting a common ancestry for words meaning known or informed. The broader family includes related nouns like wiadomość (information, news) and przymiotniki wiadomy, wszystkie formy adapted for gender, number, and case.

Grammatical notes: wiadomych is specifically the genitive plural form. The corresponding forms for other cases or numbers vary (for example, wiadomi in the masculine personal nominative plural). As with other adjectives, agreement must match the gender, number, and case of the noun it describes.

See also: wiadomy, świadomy, wiedzieć, wiadomość, źródła.