Dimir is of Slavic origin, specifically from Bulgaria and other Southern Slavic regions. It's a short form of Demetrius, which itself comes from the Greek 'Demetrios', meaning 'follower of Demeter'. Demeter was the goddess of agriculture in Greek mythology. The name Dimir was quite popular among the nobility during medieval times but has since become less common.
"The name Dimir experienced consistent popularity over these years with a total of seventeen babies named Dimir born between 2019 and 2021."