Kristoffer Nyrop: 2 books

A kiss is produced by a kind of sucking movement of the muscles of the lips, accompanied by a weaker or louder sound. Thus, from a purely phonetic point of view, a kiss may be defined as an inspiratory bilabial sound, which English phoneticians call the lip-click, i.e., the sound made by smacking the...

The Kiss and its History is an overview of the act of kissing. It was written in 1902.