https://en.m.wikipedia.org/wiki/Ashkenaz

The Karaite philologist David ben Abraham al-Fāsi, writing around the turn of the millennium, identified Ashkenaz as the ancestor of the Khazars.[3]

Ashkenaz (Hebrew: אַשְׁכְּנָז‎ ʾAškənāz) in the Hebrew Bible is one of the descendants of Noah. Ashkenaz is the first son of Gomer, and a Japhetic patriarch in the Table of Nations. In rabbinic literature, the descendants of Ashkenaz were first associated with the Scythian cultures, then later with the Slavic territories,[1] and, from the 11th century onwards, with Germany and northern Europe, or the Indo-European people, in a manner similar to Tzarfat or Sefarad.

Or AshkeNAZI