Аспидом

17 Дан бу́дет змеем на доро́ге,

17 Given [will be, would be] змеем [at, by, in, it, on the, to, toward, upon] [path, road],

аспидом на пути́,

аспидом [at, by, in, it, on the, to, toward, upon] [ways, path, road],

уязвляющим ногу коня,

так что вса́дник его́ упадёт наза́д.

so [what, that, why] [the rider, horseman] [his, him, it] [fall, will fall] back.

Dan shall be a serpent in the way,
a viper by the path,
that bites the horse's heels so that his rider falls backward.
Genesis 49:17 ESV

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.
Genesis 49:17 KJV