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Meaning & History
The first element of this name is derived from Old German isarn meaning "iron". The second element is a bit uncertain; some sources derive it from Old German barta meaning "axe", whilst others connect it to the Bards, a Germanic tribe that is also known under the names Bardes and Bardi. In turn, their name might possibly come from (or be otherwise related to) Old German bart meaning "beard". Also compare the name of the Lombards, a fellow Germanic tribe.