Eysh’dat

אֶשְׁדָּת Strong’s #799 eysh’dat

And he said, YHWH came from Sinai, And rose from Seir unto them; He shined forth from mount Paran, And he came from the ten thousands of holy ones: At his right hand was a fiery law for them.

Deuteronomy 33:2

https://biblehub.com/hebrew/799.htm

One of the most mysterious words in the Hebrew is the word eysh’dat, which only occurs once in the Bible: Deuteronomy 33:2, which states From [YHWH’s] right hand eysh’dat to them. It has been interpreted by most that this is a combination of two words: eysh (Strongs #784) meaning “fire” and dat (Strongs #1881) meaning “edict,” but because the word dat is only used in later Hebrew and eysh’dat is written as one word, this interpretation seems unlikely and the original meaning of this word is completely unknown.