Adjective
Pertaining to, or derived from, Japheth, one of the sons of Noah; as, Japhetic nations, the nations of Europe and Northern Asia; Japhetic languages.
Source: Webster's dictionaryThe " Book of Jasher ", published by Talmudic rabbis in the 17th century, provides some new names for Japheth's grandchildren not found in the Bible, and provided a much more detailed genealogy (see Japhetic ). Source: Internet