Ṛ
Ṛ (minuscule: ṛ) is a letter of the Latin alphabet, formed from R with the addition of a dot below the letter. It is used in the transliteration of Afro-Asiatic languages to represent an emphatic r. It is used in transliterating Indo-Aryan and East Iranian languages to represent either syllabic r or a retroflex flap.
In the International Alphabet of Sanskrit Transliteration (IAST) used for Sanskrit and related languages, ṛ represents a syllabic r (ऋ). In transliterations of modern Indo-Aryan languages using ISO 15919 or similar schemes, ṛ represents a retroflex flap, /ɽ/ (ड़).
Superscript Ṛ was widely used in 19th and early 20th century English, particularly on gravestones, in abbreviations of month and personal names such as in NOVṚ (November), DECṚ (December), and ALEXṚ (Alexander).