diminutive

Just as diminish means "to grow smaller", diminutive means "very small". When writing about language, diminutive as both an adjective and a noun refers to particular endings and the words made with them to indicate smallness. In English, such endings include -et and -ette (piglet, dinette, cigarette, diskette) as well as -ie and -y (doggy, bootie, Bobby, Debbie). However, diminutives are more common in many other languages. Outside of language, diminutive is used for many things, including people ("She noticed a diminutive figure standing shyly by the door"), but often not very seriously ("We were served some rather diminutive rolls").