fils

noun

a monetary unit of Iraq, Bahrain, Jordan, Kuwait, and Yemen, equal to one hundredth of a riyal in Yemen and one thousandth of a dinar elsewhere.

from a colloquial pronunciation of Arabic fals, denoting a small copper coin.

1. used after a surname to distinguish a son from a father of the same name.

   Alexandre Dumas fils

French, ‘son’.

1. a person's father-in-law.

   my in-laws helped tremendously—my MIL prepared food and my FIL helped move boxes and furniture

1960s: abbreviation.