Where does “septane” come from?
septane (English) comes from Latin septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.
septane (English): Obsolete form of heptane
Ancestry of “septane”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Latin | septem | seven; 7 |
| 2 | Proto-Italic | septem | seven |
| 3 | Proto-Indo-European | septḿ̥ | seven |