religijskim
Religijskim is the instrumental singular form of the adjective meaning "religious" in several South Slavic languages, especially Croatian, Bosnian, and Serbian. It is a grammatical inflection rather than a separate lexical entry, used to describe masculine nouns in contexts where the instrumental or adverbial sense is implied.
Etymology: The form derives from the root religij- of the word for religion, itself from Latin religiousus
Usage: In standard written Croatian, Bosnian, and Serbian, religijskim appears in phrases describing religious concepts, practices,
See also: Religion; Slavic linguistics; Adjective declension.