Quick answer
Josiah is a boy name with Hebrew roots meaning "Yahweh supports".
Pronunciation: English /d͡ʒoʊ.ˈsaɪ.ə/.
Meaning and history
This name comes from the Hebrew name יֹאשִׁיָהוּ (Yoshiyahu) meaning " Yahweh supports", from אָשְׁיָה ( ʾashya ) meaning "support" and יָהּ ( yah ) referring to the Hebrew God. In the Old Testament this is the name of a king of Judah famous for his religious reforms. He was killed fighting the Egyptians at Megiddo in the 7th century BC. In England this name came into use after the Protestant Reformation.
Notes and context
Usage: biblical, english | Ancient Hebrew: יֹאשִׁיָהוּ