Psi (Ѱ, ѱ) is a letter in the early Cyrillic alphabet, derived from the Greek letter psi (Ψ, ψ). It represents the sound /ps/, as in English naps, and was used largely in loan words from foreign languages.

Psi was eliminated from Russian orthography along with ksi, omega, and yus in the Civil Script of 1708 (Peter the Great's Grazhdanka), and has also been dropped from other secular languages. It continues to be used in Church Slavonic.

See also

Cyrillic letters

Psi (Cirillico) | Ѱ | Пси (кириллица) | Psi (kyrilliska) | Ѱ