Charles Ellicott Commentary Judges 15:17

"And it came to pass, when he had made an end of speaking, that he cast away the jawbone out of his hand; and that place was called Ramath-lehi." — Judges 15:17 (ASV)

Ramath-lehi. —The marginal rendering, “ the lifting up of the jawbone” is found in the Septuagint and Vulgate, and derives Ramath from the verb rûm, ” to be high.” The more natural explanation is, “the hill of Lehi.” The other marginal rendering, “the casting away of the jawbone,” derives Ramath from the verb ramah, “he cast.” This would require the form R emath.