Ͳ U+0372, Ͳ GREEK CAPITAL LETTER ARCHAIC SAMPI ← ͱ[U+0371] Greek and Coptic ͳ →[U+0373] Ancient Greek Letter Ͳ • (S) (lower case ͳ, modern form Ϡ) Ancient shape of Sampi, an obsolete letter of the Greek alphabet.Wikiwand - on Seamless Wikipedia browsing. On steroids.