Draft:Sigmoid S
All about Sigmoid S (draft)
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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.[1]
| Sigmoid S | |
|---|---|
| Ꟙ ꟙ | |
 | |
| Usage | |
| Writing system | Latin script |
| Type | Alphabet |
| Language of origin | Latin language |
| In Unicode | U+A7D8, U+A7D9 |
| History | |
| Development | |
| Other | |
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.[2]
Encoding
Its Unicode codepoints are U+A7D8 Ꟙ LATIN CAPITAL LETTER SIGMOID S and U+A7D9 ꟙ LATIN SMALL LETTER SIGMOID S.
| Preview | Ꟙ | Ꟙ | ||
|---|---|---|---|---|
| Unicode name | LATIN CAPITAL LETTER SIGMOID S | LATIN SMALL LETTER SIGMOID S | ||
| Encodings | decimal | hex | dec | hex |
| Unicode | 42968 | U+A7D8 | 42969 | U+A7D8 |