Draft:Sigmoid S

This article is about Sigmoid S. For the other variant of S, see ſ.

Not to be confused with σ, ᵹ, or ẟ.

Sigmoid S (majuscule:Ꟙ, minuscule:Ꟙ) is a letter of the Latin alphabet, formed from S with the addition of a loop to make it look like a lowercase Sigma (Σ σ ς). It is a medieval form of the letter S, used in Middle English, Middle Scots, and Middle Cornish.

Usage
The usage for this letter can vary. In some manuscripts, ꟙ is used in word-final position and Long S (ſ) elsewhere. In others, ꟙ appears in word-initial position, ſ medially and s word-finally. Scribes may vary the forms randomly.

Encoding
Its Unicode codepoints are U+A7D8 Ꟙ LATIN CAPITAL LETTER SIGMOID S and U+A7D9 ꟙ LATIN SMALL LETTER SIGMOID S.