Cyrillization of Greek refers to the transcription or transliteration of text from the Greek alphabet to the Cyrillic script.
The Early Cyrillic alphabet included the entire Greek alphabet: а в г д є ꙁ и ѳ ї к л м н ѯ о п р с т ѵ ф х ѱ ѡ. However, modern Cyrillic alphabets omit some Greek letters, so Greek names and loanwords are no longer spelled originally in modern Cyrillic orthographies.