Science Fair Project Encyclopedia
Sampi (Upper case Ϡ, lower case ϡ) is an obsolete letter of the Greek alphabet and has a numeric value of 900. The name "sampi" seems to come from [o]sàn pî: "like a pi." Another name formerly used for this archaic letter was Disigma because of the phoneme it represented, a /ss/ or /ks/.
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