Tanowej
Tanowej is a grammatical form in Polish, not a standalone concept. It is the feminine genitive (and also dative and locative) singular form of the adjective tanowy, which denotes something related to tanning or tan leather. As such, tanowej appears when describing feminine nouns in certain cases, for example in phrases referring to leather derived from tanning.
In practical terms, tanowej is used to modify feminine nouns tied to tanning or tan leather. Typical
Linguistically, tanowej illustrates Polish adjective declension: in feminine singular, the forms tanowa (nominative), tanowej (genitive), tanowej
Overall, tanowej is a typical inflection used in materials and attributes related to tanning or tan leather