Ratimir (Serbo-Croatian) comes from Proto-Slavic ortь, from Proto-Slavic oràti, from Proto-Balto-Slavic árˀtei, from Proto-Indo-European h₂éryeti, from Proto-Indo-European h₂erh₃-, from Proto-Indo-European h₁er- — earth.
Ancestry of “Ratimir”, step by step
Ratimir traces back through two separate lines of ancestry.