Why Elohim Is Plural

Just an interesting thought from a Wikipedia post: "One of the frequent cases was the Tetragrammaton, which according to later Rabbinite Jewish practices should not be pronounced but read as אֲדֹנָי‎ (Adonai, lit. transl. My Lords, Pluralis majestatis taken as singular), or, if the previous or next word already was Adonai, as 'Elohim' (אֱלֹהִים‎/'God')."

Adonai, My Lords, and Elohim, Gods, might be plural not because of Pluralis majestatis, but because they represent a TRINITY.

Though I recall that per Alexander, the Aramaic basis for Elohim means "Above the Flames." THERE is REAL majesty.