'Boastfully' in the Bible

I was considering the horns, and look, another little horn came up {among} them, and three of the earlier horns {were rooted out} from before it, and there were eyes like the eyes of human in this horn and [also] a mouth [that was] speaking boastfully.

and concerning the horns that [were] on its head, and [concerning] [the] other [horn] that came up and {before which three horns fell}, and this horn {had eyes} and mouth speaking {boastfully}, and its appearance [was] larger than its companions.