philematology

The story

1. Ancient Greek · derived fromφῐ́λημᾰ“a kiss”
2. Danish · borrowed fromfilematologi
3. English todayphilematology

From Danish filematologi, from Ancient Greek φῐ́λημᾰ (phĭ́lēmă, “a kiss”) + ologi (equivalent to English -ology), but compare the New Latin philēmatologiā, which appears written in Greek as φιληματολογία in the title of a 1659 book.

First known use, by meaning

• from 1901 The scientific study of kissing.