Where does “посмертный” come from?
посмертный (Russian) comes from Russian смерть, from Old East Slavic съмьрть, from Proto-Slavic sъmьrtь, from Proto-Balto-Slavic su-mirtis, from Proto-Balto-Slavic mirtis, from Proto-Indo-European mértis, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.
Ancestry of “посмертный”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Russian | смерть | death; dying for |
| 2 | Old East Slavic | съмьрть | — |
| 3 | Proto-Slavic | sъmьrtь | death |
| 4 | Proto-Balto-Slavic | su-mirtis | natural death |
| 5 | Proto-Balto-Slavic | mirtis | — |
| 6 | Proto-Indo-European | mértis | death |
| 7 | Proto-Indo-European | mer- | to die; to disappear; sea, lake, wetland |