The Arabic letter س sīn is the 12th letter in the common Hijā'i order, and the 15th letter in the Abjadi order. Based on Semitic linguistics, Samekh has no surviving descendant in the Arabic alphabet, and that sīn is derived from Phoenician šīn 𐤔 rather than Phoenician sāmek 𐤎, but unlike the Aramaic 𐡔 sīn/šīn and the Hebrew ש sīn/šīn, Arabic س sīn is considered a completely separate letter from ش šīn, and is written thus: