Psi (letter) Psi (letter) Psi (; uppercase ', lowercase '; "psi" ) is the 23rd letter of the Greek alphabet and has a numeric value of 700. In both Classical and Modern Greek, the letter indicates the combination /ps/ (as in English word "lapse"). For Greek loanwords in Latin and modern languages with Latin alphabets, psi is usually transliterated as "ps". The letter's origin is uncertain. It may or may not derive from the Phoenician alphabet. It appears in the 7th century BC, expressing /ps/ in the Eastern alphabets, but /kʰ/ in the Western alphabets (the sound expressed by Χ in the
Gagauz alphabet Gagauz alphabet The modern Gagauz alphabet is a 31-letter Latin-based alphabet modelled on the Turkish alphabet. Previously, during Soviet rule, Gagauz's official script was Cyrillic. Gagauz was first written in Greek letters in the late 1800s. The current 31-letter Gagauz alphabet, used for the Gagauz language, is a Latin-based alphabet modelled after the Turkish. It appears that the first alphabet to be used for the language was the Greek alphabet in the late 19th century. For example, orientalist Otto Blau claims that plays of Euripides had been translated into the Gagauz language and had been written with Greek letters. Beginning