A Hebrew contraction for JEHOVAH, Psalms 68:4. It is often found in Hebrew compound words, as in Adonijah, Malachia, Hallelujah.
Source: ATS Bible Dictionary
Jah
A contraction for Jehovah (Psalms 68:4).
Source: Easton's Bible Dictionary
Jah
JAH, n. Jehovah.
Source: King James Dictionary
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) [JEHOVAH].