Where does “photopériode” come from?
photopériode (French) comes from French photo-, from Ancient Greek φωτός, from Ancient Greek φῶς, from Proto-Hellenic pʰáos, from Proto-Indo-European bʰéh₂os, from Proto-Indo-European bʰeh₂-, from Proto-Indo-European bʰeh₂-s-ri-.
photopériode (French): photoperiod
Ancestry of “photopériode”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | French | photo- | photo- |
| 2 | Ancient Greek | φωτός | genitive singular of φῶς; light; of light |
| 3 | Ancient Greek | φῶς | Attic form of φᾰ́ος |
| 4 | Proto-Hellenic | pʰáos | — |
| 5 | Proto-Indo-European | bʰéh₂os | — |
| 6 | Proto-Indo-European | bʰeh₂- | to shine, glow light; to speak, say |
| 7 | Proto-Indo-European | bʰeh₂-s-ri- | — |