Unknown; likely a modern invented name or rare variant
Jometh is an extremely rare name with no established etymological history. It may have been created as a blend of names like Joseph and Kenneth, or as a phonetic variation of the Hebrew name Jometh, though it lacks a documented meaning in standard onomastic references.
Less common today
Jometh isn't in the latest US Top 1000. It last peaked at #4,393 in 2008.
US births per 5-year period, 1990βpresent (SSA data).