Hebrews 4:8

[Jerry]

Yeshu (Aramaic) comes from Yeshuah/Yehoshuah (Hebrew).
Joshua (English) comes from Yeshuah/Yehoshuah (Hebrew).

Perhaps so, but not in the Hebrew that I am familiar with, which admittedly is limited to the Hebrew Masorete text. From my limited perspective:

Yeshu/Yeshua (Aramaic) is a derivative of Yeishua (Hebrew H3442) and in some part (H3444) "salvation".
Yeshu/Yeshua (Aramaic), when it applies to "Joshua", is written in Hebrew (H3091) as Y'hoshua.

So, maybe there is a Hebrew source text that lists OT "Joshua" as Yeshua, and not Y'hoshua (y'how-shu-a)? Something that the Aramaic OT and Greek LXX translations relied upon. I'm just not familiar with it. Which leaves me wondering why the Aramaic OT and Greek LXX translations, supposedly translations of the Hebrew text, did not pick up on the Hebrew distinction between "Jeshua" and "Joshua", that of Yeshua and Y'hoshua.

It would be interesting to know how the Hebrew Dead Sea Scrolls wrote the name of "Joshua". I did a brief search on the topic, but could not come up with anything.