Kazimir is of Slavic origin, specifically from Poland and other Eastern European countries. It means "destroyer of peace," derived from the elementskaz (battle) and mir (peace). This unusual name is often shortened to the more familiar Kazik, but it stands alone as a unique and distinctive choice for parents seeking an uncommon moniker for their child.
"The name Kazimier experienced modest popularity during the early 20th century, with a notable peak in 1918."