Jah, the Lord, most vehement

Strong’s Dictionary of Hebrew Words:

Transliteration:
Yahh
Phonic:
yaw
Meaning:
contraction for 3068, and meaning the same; Jah, the sacred name
KJV Usage:
Jah, the Lord, most vehement. Compare names in "-iah," "- jah."

Potts’ Bible Proper Names:

Eternal; the self-existent; everlasting God:―[JEHOVAH], Psa. 68:4. {Aeternus}