Where does “pinniform” come from?
pinniform (English) comes from Latin Pinna, from Latin penna, from Proto-Italic petnā, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.
pinniform (English): Shaped like a fin or feather
Definitions
- Shaped like a fin or feather
Ancestry of “pinniform”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Latin | Pinna | — |
| 2 | Latin | penna | wing; feather, especially a flight-feather;... |
| 3 | Proto-Italic | petnā | feather; wing |
| 4 | Proto-Indo-European | péth₂r̥ | wing; feather |
| 5 | Proto-Indo-European | peth₂- | to spread out; to fly |