The origin of the name Elasah is Hebrew
This is how Elasah is written in Hebrew:
אֶלְעָשָֹה = ‘El`asah
The biblical meaning of the name Elasah is:
“God has made”
“the doings of God”
In The Bible:
Elasah was
(1*.) A priest in the time of Ezra who had married a Gentile wife
(2*.) Son of Shaphan, one of the two men who were sent on a mission by King Zedekiah to Nebuchadnezzar at Babylon
*Smith’s Bible Dictionary
The name Elasah appears in the (KJV) bible in the following verses:
Ezra 10:22
And of the sons of Pashur; Elioenai, Maaseiah, Ishmael, Nethaneel, Jozabad, and אֶלְעָשָֹה (Elasah).
Jeremiah 29:3
By the hand of אֶלְעָשָֹה (Elasah) the son of Shaphan, and Gemariah the son of Hilkiah, (whom Zedekiah king of Judah sent unto Babylon to Nebuchadnezzar king of Babylon) saying,