New International Version
His face turned pale and he was so frightened that his legs became weak and his knees were knocking.

American Standard Version
Then the king's countenance was changed in him, and his thoughts troubled him; and the joints of his loins were loosed, and his knees smote one against another.

Berean Study Bible
his face grew pale and his thoughts so alarmed him that his hips gave way and his knees knocked together.

Douay-Rheims Bible
Then was the king's countenance changed, and his thoughts troubled him: and the joints of his loins were loosed, and his knees struck one against the other.

English Revised Version
Then the king's countenance was changed in him, and his thoughts troubled him; and the joints of his loins were loosed, and his knees smote one against another.

King James Bible
Then the king's countenance was changed, and his thoughts troubled him, so that the joints of his loins were loosed, and his knees smote one against another.

World English Bible
Then the king's face was changed in him, and his thoughts troubled him; and the joints of his thighs were loosened, and his knees struck one against another.

Young's Literal Translation
then the king's countenance hath changed, and his thoughts do trouble him, and the joints of his loins are loosed, and his knees are smiting one against another.

Daniel 5:6 Additional Translations ...