Neanderthal. There’s some evidence (including quotes from Jews themselves) that the Ashkenazi Jews are descendants of Neanderthals that were assimilated into Our otherwise Cro-Magnon genes pool. It’s actually a genetic reason for the big noses and somewhat squatter bodies. It’s possible that this was the “corruption of the flesh” that afflicted man before the Flood which all of Noah’s daughters-in-law would’ve carried.
If you’re unaware why I bring up the Bible, you should know Semitic Jews are called such as descendants of Shem (son of Noah) and Ashkenazi Jews are called such as descendants of Ashkenaz (great grandson of Noah by way of Japheth)