Er with caron (Р̌ р̌; italics:
Р̌ р̌) is a letter of the Cyrillic script.Er with caron is used in the Nivkh language, where it represents the voiceless alveolar trill pronounced as //r̥//, like the Welsh rh.
It was also used in Polish Cyrillic, corresponding to the digraph Rz.[1]