Where does “обоюдоострый” come from?
обоюдоострый (Russian) comes from Russian о́стрый, from Proto-Slavic ostrъ, from Proto-Balto-Slavic aśras, from Proto-Indo-European *h₂eḱrós, from Proto-Indo-European h₂eḱ- — sharp.
обоюдоострый (Russian): double-edged
Definitions
- double-edged
Ancestry of “обоюдоострый”, step by step
обоюдоострый traces back through two separate lines of ancestry.
via Russian о́стрый
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Russian | о́стрый | pointed, sharp; sharp, pointed |
| 2 | Proto-Slavic | ostrъ | sharp |
| 3 | Proto-Balto-Slavic | aśras | sharp |
| 4 | Proto-Indo-European | *h₂eḱrós | sharp |
| 5 | Proto-Indo-European | h₂eḱ- | sharp |
via Russian обою́дный
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Russian | обою́дный | mutual, reciprocal |