olejowy
Ole jowy is a Polish adjective meaning relating to oil or oil-based. It is formed from the noun olej (oil) with the adjectival suffix -owy and agrees with the noun it modifies in gender and number (masculine singular olejowy, feminine singular olejowa, neuter singular olejowe; plural forms vary by case).
The term is widely used in both technical and everyday language to indicate a connection with oil
Form and usage notes: as with other Polish adjectives derived from a noun, olejowy changes form to
See also: olej (oil), olej napędowy (diesel fuel), farba olejna (oil-based paint), branża olejowa (oil industry).