The supposed posterity of Japheth, son of Noah. The Aryan family is said to belong to this race.
“The Indo-European family of languages as known by various
designations. Some style it Japhetic, as if it appertained to
the descendants of the patriarch Japheth; as the Semitic tongues
[appertain] to the descendants of Shem.” —
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894