Japeth is a unique, three-syllable given name of Hebrew origin. It is derived from the biblical figure Jobab, also known as Japhia, who was a king in Edom. The name Japeth itself means 'enlargement' or 'expansion,' suggesting growth and development. In the Bible, Japeth is also one of Noah's three sons, and after the flood, he became the ancestor of various European peoples according to the story of the Table of Nations.
The name Japeth experienced a decline in popularity from the late 70s to mid-90s, with its highest birth count being seven in 1977 and lowest at five in both 1978 and 1996. The total number of babies named Japeth over this period is thirty-seven.