G1238–διάδημα–diadēma

And another sign was seen in the heaven: and behold, a great red dragon, having seven heads and ten horns, and on his heads seven diadems;

διαδήματα, diadēmata “royal crowns,”

And I stood upon the sand of the sea; and I saw a beast rising out of the sea, having ten horns and seven heads, and upon its horns ten diadems, and upon its heads names of blasphemy.

διαδήματα diadēmata “royal crowns”

And his eyes are a flame of fire, and upon his head many diadems, having a name written which no one knows but himself;

διαδήματα diadēmata “royal crowns”