Obelus
An obelus (plural: obeluses or obeli) is a historical annotation mark in codicology that has come to have three distinct modern forms, meanings and typographical uses: Division sign ÷ Dagger † Commercial minus sign ⁒ (limited geographical area of use) The word "obelus" comes from ὀβελός (obelós), the Ancient Greek word for a sharpened stick, spit, or pointed pillar. This is the same root as that of the word 'obelisk'.