BIBLIOGRAPHIA IRANICA:
A (New) Old Iranian Etymology for Biblical Aramaic אֲדַרְגָּזַר. Notice of an article by Benjamin J. Noonan in
Aramaic Studies. Alas, you need a paid personal or institutional subscription to access the full article. But the abstract gives the basic argument. Follow the link and it's yours.
Cross-file under Philology and Aramaic Watch.
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