jah \jah\ (j?), n. [heb. yāh.] jehovah. lxviii. 4.
Dictionary source: hEnglish - advanced version
English to English translation of jaH
(Jehovah), the abbreviated form of Jehovah, used only in poetry. It occurs frequently in the Hebrew, but with a single exception, (Psalms 68:4) is rendered "Lord" in the Authorized Version. The identity of Jah and Jehovah is strongly marked in two passages of Isaiah- (Isaiah 12:2; 26:4) See: Jehovah.
Jah or Yah ( Yahu) is a short form of Yahweh (in consonantal spelling YHWH; ), the proper name of the God of Israel in the Hebrew Bible. This short form of the name occurs 50 times in the text of the Hebrew Bible, of which 24 form part of the phrase Hallelu-jah.