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The last of the numeral-only signs.
Also known as: Disigma
The Greek sign for the numeral nine hundred, the highest of the alphabetic numerals.
Writes the numeral nine hundred, closing the Greek alphabetic number series.
Contexts: Mathematics, History
Its name is usually explained as 'like pi', describing the shape rather than recording a letter name, which suggests the sign's original identity was already forgotten when it was named.
The etymology is a scholarly reconstruction rather than an attested derivation.
Contexts: Mathematics, History
A glyph of vertical strokes joined by a crossing line, closing the numeral series after omega.