תָּחַם, Pi. תִּיחֵם (denom. of תְּחוּם) to mark the limits of, form landmarks. B. Bath. 56ᵃ, v. חֲצוּבָא II. Pesik. ʿĂniya, p. 137ᵇ בעולם הזה מְתַחֲמִים … מְתַחֲמִין וכ׳ in this world they form landmarks with stones or cistus shrubs, but in the latter days they shall form landmarks with precious stones &c.; Yalk. Is. 339; Midr. Till. to Ps. LXXXVII.