likimääräinen (Finnish) comes from Finnish likimäärä, from Finnish määrä, from Old East Slavic мѣра, from Proto-Slavic měra, from Proto-Balto-Slavic mḗˀrāˀ, from Proto-Indo-European meh₁-reh₂, from Proto-Indo-European meh₁- — to measure.
likimääräinen (Finnish): approximate, approximative