What is the meaning of Daniel 7:20?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

I also wanted to know about the ten horns on its head and the other horn that came up, before which three of them fell—the horn whose appearance was more imposing than the others, with eyes and with a mouth that spoke words of arrogance.

Berean Standard Bible (BSB)

and concerning the ten horns that were on its head, and the other horn which came up, and before which three fell, even that horn that had eyes, and a mouth that spoke great things, whose look was more stout than its fellows.

World English Bible (WEB)

And of{H5922} the ten{H6236} horns{H7162} that were in his head{H7217}, and of the other{H317} which came up{H5559}{(H8754)}, and before{H4481}{H6925} whom three{H8532} fell{H5308}{(H8754)}; even of that horn{H7162} that{H1797} had eyes{H5870}, and a mouth{H6433} that spake{H4449}{(H8743)} very great things{H7260}, whose look{H2376} was more{H4481} stout{H7229} than{H4481} his fellows{H2273}.

Strong's King James

Also to know about the 10 horns on its head, and the other horn which came up in its sight, and three fell. That horn which had eyes, and a mouth speaking great things, and its appearance was larger than its companions.

The F.O.G*

The F.O.G Paraphrase

and concerning the ten horns that are in its heads, and of the other that came up, and before which three have fallen, even of that horn that hath eyes, and a mouth speaking great things, and whose appearance is great above its companions.

Young's Literal Translation