New International Version
How you have fallen from heaven, morning star, son of the dawn! You have been cast down to the earth, you who once laid low the nations!

American Standard Version
How art thou fallen from heaven, O day-star, son of the morning! how art thou cut down to the ground, that didst lay low the nations!

Berean Study Bible
How you have fallen from heaven, O morning star, son of the dawn! You have been cut down to the ground, O destroyer of nations.

Douay-Rheims Bible
How art thou fallen from heaven, O Lucifer, who didst rise in the morning? how art thou fallen to the earth, that didst wound the nations?

English Revised Version
How art thou fallen from heaven, O day star, son of the morning! how art thou cut down to the ground, which didst lay low the nations!

King James Bible
How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations!

World English Bible
How you have fallen from heaven, morning star, son of the dawn! How you are cut down to the ground, who laid the nations low!

Young's Literal Translation
How hast thou fallen from the heavens, O shining one, son of the dawn! Thou hast been cut down to earth, O weakener of nations.

Isaiah 14:12 Additional Translations ...