Ypsilon

Greek Letter Ypsilon (Ύψιλον - Υ)

"Long U". Its upper-case form came into English as an almost-a-vowel letter "y" (a short "long e"). It also went into Latin as "V", which has the "ooh" sound ("vir quisque vir"). When English needed a letter for the "v" sound, the Latin "V" was used and rounded its bottom for a range of vowel sounds that we call "u". Doubled "V" kept the "ooh" sound, which is what the almost-a-vowel "w" (the French call it "double V") now has.

"Υ" Letter in mathematics and in science

Υ represents:

• an elementary particle

Greek words with "υ"

γυαλί, ύψος