The word Eloah is the singular (or dual) of Elohim and appears more than 70 times in the Tanakh, primarily in more poetic passages.
It is generally thought that the same divine name is found in Arabic (Ilah as singular "a god", as opposed to Allah meaning "The God" or "God") and in Aramaic (Elah).
Interestingly, the term Eloah, used for God, is predominantly used in Job by Job and Eliphaz in their debating.
It is apparently related to the Hebrew word ēl, though morphologically it consists of the Hebrew word Eloah (אלוה) with a plural suffix.
The pronounced [h] (or he mappiq) of Eloah never alternates with a [t] consonant sound (the way that silent feminine "h" does), and the [a] "furtivum" element in Eloah is actually a late feature of masoretic pronunciation traditions, which wouldn't have existed in the pronunciation of Biblical times.
The meaning of Elohim is further complicated by the fact that it is used to describe the spirit of the dead prophet Samuel, raised by Saul in 1 Samuel 28:13.