Name hope vs. islands law

[IPOstapyuk]

But I have a question. Didn't Jacob speak both Old Hebrew and Aramaic since he calls Aramaic words "Jegar Sahadutha" as Galeed?

While Paul is likely busy let me tell my logic.
"Jegar Sahadutha" represents paternal Aramaic and
" Galeed" represents new form of Aramaic influenced and shaped by Canaanite environment.
Logically for me it is so and Paul is right that when Abraham crossed the river, he did not immediately forget his Aramaic language.
The word Hebrews is from word "avar" - to cross, they crossed the river and were called the Crossers or Hebrews. Then the Aramaic was developed into Mishnaic Hebrew and so on.