Japhetitology
The scientific study of the Japhetic languages and their interrelationships is called Japhetitology.
Japhetitology goes back to the scientific views of the Russian linguist Nikolai Marr (born 1865, died 1934).
Japheth is one of the three sons of Noah in the Old Testament. According to the Bible record, he is one of the eight survivors of the Flood.