New International Version
Endless ruin has overtaken my enemies, you have uprooted their cities; even the memory of them has perished.

American Standard Version
The enemy are come to an end, they are desolate for ever; And the cities which thou hast overthrown, The very remembrance of them is perished.

Berean Study Bible
The enemy has come to eternal ruin, and You have uprooted their cities; the very memory of them has vanished.

Douay-Rheims Bible
The swords of the enemy have failed unto the end: and their cities thou hast destroyed. Their memory hath perished with a noise.

English Revised Version
The enemy are come to an end, they are desolate for ever; and the cities which thou hast overthrown, their very memorial is perished.

King James Bible
O thou enemy, destructions are come to a perpetual end: and thou hast destroyed cities; their memorial is perished with them.

World English Bible
The enemy is overtaken by endless ruin. The very memory of the cities which you have overthrown has perished.

Young's Literal Translation
O thou Enemy, Finished have been destructions for ever, As to cities thou hast plucked up, Perished hath their memorial with them.

Psalm 9:6 Additional Translations ...