Source: Cologne Digital Sanskrit Dictionaries: Indian Epigraphical Glossary
Muruṇḍa.—(EI 14, 19), Śaka title of a chief; a title or tribal name; supposed to be derived from a Scythian word meaning ‘a king’. Note: muruṇḍa is defined in the “Indian epigraphical glossary” as it can be found on ancient inscriptions commonly written in Sanskrit, Prakrit or Dravidian languages.
https://www.wisdomlib.org/definition/murunda
Murunda is a Saka/Scythian title, meaning Chief/ Head.
According to Sten Konow 'Murunda' is the later form of a Saka word meaning 'lord' or 'master'. The title Murunda means "Lord", in Saka language, as per Sten Konow. [1]
https://www.jatland.com/home/Murunda