Jewish Publication Society of America Version (JPS1917) - Genesis 49:17 >

Dan shall be a serpent in the way, a horned snake in the path, that biteth the horse's heels, so that his rider falleth backward.

King James Version (KJV) - Genesis 49:17 >

Dan shall be a serpent by the way, an adder in the path, that biteth the horse heels, so that his rider shall fall backward.

Berean Study Bible (BSB) - Genesis 49:17 >

He will be a snake by the road, a viper in the path that bites the horse’s heels so that its rider tumbles backward.