What is "iunius"

On the ancient Roman calendar, mensis Iunius or Iunius, also Junius ( June), was the sixth month, following Maius ( May). In the oldest calendar attributed by the Romans to Romulus, Iunius was the fourth month in a ten-month year that began with March ( Martius, " Mars' month"). The month following June was thus called Quinctilis or Quintilis, the "fifth" month. Iunius had 29 days until a day was added during the Julian reform of the calendar in the mid-40s BC. The month that followed Iunius was renamed Iulius ( July) in honour of Julius Caesar.