Mathematical language isn't properly understood by many people. People could mistakenly use "month to month average" when they really want the 'average a month' but that doesn't change the meaning of those phrases, equally as people creating about "stationery vehicles" does not change the meaning of "stationery" or "stationary". https://financefeeds.com/xbto-powers-arab-bank-switzerlands-first-bitcoin-yield-product-for-hnwis/