German for any
tea biscuit or cookie. Though "Keks" was originally intended to be a plural form of "Kek", it has become a singular form (proper plural is now "Kekse").
Invented by biscuit-manufacturer Bahlsen when he first introduced his Leibnitz biscuits around 1900. When
people couldn't pronounce the english word "cakes", Bahlsen made up "Keks".