reglaciate

re- +‎ glaciate

reglaciate (third-person singular simple present reglaciates, present participle reglaciating, simple past and past participle reglaciated)

1. (transitive, intransitive) To glaciate again.
   • 2013, Steve Webb, Corridors to Extinction and the Australian Megafauna‎:

     There were a series of smaller temperature fluctuations before Antarctica once again began to reglaciate ca. 12Ma as temperatures dropped below 2°C.