Imiesowu
Imiesowu is a nonstandard spelling of the Polish grammatical term imiesłów, the participle. In standard Polish, imiesłów denotes a class of verb-derived forms that function as adjectives and, in some uses, as adverbs. The genitive form of imiesłów is imiesłowu. The spelling imiesowu typically appears in texts that omit diacritics or in informal writing, and it is not recognized as a separate, formal term in Polish grammar.
Imiesłowy are formed from verbs and describe an action related to a noun or modify the noun
Present participle: czytający uczeń (the student who is reading). Past participle used adjectivally: dom zrobiony przez
When referring to Polish grammar, the canonical term is imiesłów; imiesowu is typically a misspelling or diacritic-free