Cuatrillo
Cuatrillo is a letter of several colonial Mayan alphabets in the Latin script that is based on the digit 4. It was invented by a Franciscan friar, Alonso de la Parra, in the 16th century to represent the velar ejective consonant found in Mayan languages, and is known as one of the Parra letters.
A derivative of the cuatrillo by adding a comma diacritic, Ꜯ ꜯ was used for the alveolar ejective affricate found in the same languages.
The cuatrillo is encoded in Unicode at the code points and, respectively. The cuatrillo-commas are at and.
