Other forms: monetarily
If it has to do with money or currency, it’s monetary, like your childhood toy collection that has no monetary value, but you love it nonetheless.
The adjective monetary is related to a Latin word that means “mint,” which is not just a refreshing gum or ice cream flavor but, in this case, where money is made. Anything that pertains to money can be described as monetary, like a country whose monetary system consists of metal coins of different denominations or an antiques expert who can tell you the monetary value of the old things in our attic.