پسی
Also known as υ, Upsilon
Upsilon (, ; uppercase Υ, lowercase υ; ýpsilon ) or ypsilon is the twentieth letter of the Greek alphabet. In the system of Greek numerals, has a value of 400. It is derived from the Phoenician waw (𐤅).
AI overview
Upsilon (Υ) is the twentieth letter of the Greek alphabet that represents the number 400 in the ancient Greek numeral system. It originated from the Phoenician letter waw and remains part of the Greek writing system used today.
AI-generated from the Wikipedia summary — may contain errors.