Wyrosych
Wyrosych is a Polish form derived from the verb wyrosnąć, meaning to grow up or to grow tall. In dictionaries it is encountered as a participial/adjectival form that conveys completion of growth or maturation. The term is most often discussed in relation to other related forms such as wyrośnięty (the more common modern adjective meaning grown or mature) and the different case endings that a participle or adjective of this type can take.
In standard contemporary Polish, the most common descriptors for something that has reached maturity are wyrośnięty
Semantically, wyrosych carries a sense of completed development and often a degree of solidity, sturdiness, or