Do you have some sources for that etymology?
Have you never wondered why, in most English Bibles, the names of Yehoshua (Joshua) of the Old Testament, and Yehoshua our savior in the New Testament are translated differently, even though they both had the very same name?
The translators applied the curse to our savior, but not to his ancient namesake. Yet they are shown identically in the vast majority of Greek MS.