The sound /w/ existed in Mycenean Greek, as attested in Linear B and archaic Greek inscriptions using … 詳細

Digamma/wau remained in use in the system of Greek numerals attributed to Miletus, where it stood for the number 6, reflecting its original place in the sequence of the alphabet. It was one of three letters that were kept i… 詳細

Digamma was derived from Phoenician waw, which was shaped roughly like a Y (). Of the two Greek reflexes of waw, digamma retained the alphabetic position, but had its shape modified to , while the upsilon retained the original shap… 詳細

Throughout much of its history, the shape of digamma/stigma has often been very similar to that of other symbols, with which it can easily be confused. In ancient papyri, the cursive C-shaped form of numeric digamma is ofte… 詳細

The symbol has been called by a variety of different names, referring either to its alphabetic or its numeral function or both.
Wau (variously rendered as vau, waw or similarly in English) is the original name of the alphabetic let… 詳細

• Peter T. Daniels – William Bright (edd.), The World's Writing Systems, New York, Oxford University Press, 1996. ISBN 0-19-507993-0
• Jean Humbert, Histoire de la langue grecque, Paris, 1972.… 詳細

• Perseus Project: lexicon search for words starting with or containing digamma 詳細