If a gourmand chances upon a particularly delectable meal, he might say: "Mm, nummy in my tummy!"
Where does nummy come from? From dictionary.com I found that nummy is a form of yummy, formed by yum + -y , where yum is short for yum-yum. Is that accurate? And, where does yum-yum come from?
Best Answer
Cookie monster. See the Rocketboom video about "om nom nom". Notice, in Google timeline, that "nummy" word is not used to describe something that is yummy, until the 1970s. Cookie monster himself debuted in the 1969 premier season of Sesame Street. Nummy is just a another form of "nom nom", describing something as delicious.