KJV - And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon.
ASV - They have over them as king the angel of the abyss: his name in Hebrew is Abaddon, and in the Greek `tongue' he hath the name Apollyon.
BBE - They have over them as king the angel of the great deep: his name in Hebrew is Abaddon, and in the Greek language Apollyon.
WEB - They have over them as king the angel of the abyss. His name in Hebrew is "Abaddon,"{"Abaddon" is a Hebrew word that means ruin, destruction, or the place of destruction} but in Greek, he has the name "Apollyon."{"Apollyon" means "Destroyer."}
YLT - and they have over them a king -- the messenger of the abyss -- a name `is' to him in Hebrew, Abaddon, and in the Greek he hath a name, Apollyon.