pecuniarium
Pecuniarium is a term derived from the Latin pecunia, meaning money. In English it functions as an adjective meaning “relating to money,” and it is encountered chiefly in scholarly, legal, or Latin-language contexts. The more common English adjective is pecuniary; pecuniarium is generally considered archaic or rare.
In legal writing, pecuniary or pecuniarium damages refer to monetary compensation for loss, as opposed to non-pecuniary
Origin and morphology: pecunia means money, and the suffix -arium forms nouns or adjectives; pecuniarium therefore
In economics or philosophy, pecuniarium can be used to denote issues pertaining to wealth, money, or monetary
Usage in fiction: Some authors or world-builders employ pecuniarium as the name of a currency or unit