Russian word между comes from Proto-Indo-European *me (In the middle of, near, by, around, with.), Proto-Indo-European *medʰ-yeh₂, Proto-Indo-European *medʰyos, Proto-Indo-European *medʰyo-
| Dictionary entry | Language | Definition |
|---|---|---|
| *me | Proto-Indo-European (ine) | In the middle of, near, by, around, with. |
| *medʰ-yeh₂ | Proto-Indo-European (ine) | |
| *medʰyos | Proto-Indo-European (ine) | |
| *medʰyo- | Proto-Indo-European (ine) | |
| *meth₂- | Proto-Indo-European (ine) | |
| *médʰyos | Proto-Indo-European (ine) | Middle. |
| *medjas | Proto-Balto-Slavic (ine-bsl-pro) | |
| *meďa | Proto-Slavic (sla-pro) | Border, boundary, balk. |
| *meďu | Proto-Slavic (sla-pro) | (with instrumental) between, among. |
| междоу | Church Slavic (chu) | Among. Between. |
| между | Russian (ru) | (with instrumental, rarely, with genitive) between, among. |