Quick answer
Zarathuštra is a boy name.
Pronunciation: English /ˌzæɹ.ə.ˈθuːs.tɹə/.
Meaning and history
From Avestan 𐬰𐬀𐬭𐬀𐬚𐬎𐬱𐬙𐬭𐬀 (Zarathuštra), in which the second element is 𐬎𐬱𐬙𐬭𐬀 (uštra) meaning "camel". Proposed meanings for the first element include "old", "moving", "angry" and "yellow". Zarathustra was an Iranian prophet who founded the ancient religion of Zoroastrianism around the 10th century BC. He is also called Zoroaster in English, from the Greek form of his name Ζωροάστρης (Zoroastres).
Notes and context
Usage: history