Where does “semicircadian” come from?
semicircadian (English) comes from English circadian, from Latin diēs, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws, from Proto-Indo-European dyew- — to be bright; sky, heaven.
semicircadian (English): Occurring twice in a 24 hour period
Definitions
- Occurring twice in a 24 hour period
Ancestry of “semicircadian”, step by step
semicircadian traces back through two separate lines of ancestry.
via English circadian
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | circadian | of, relating to, or showing rhythmic behaviour... |
| 2 | Latin | diēs | A day, particularly |
| 3 | Proto-Italic | djēm | accusative singular of *djous |
| 4 | Proto-Italic | *djous | — |
| 5 | Proto-Indo-European | dyḗws | sky, heaven; sky god |
| 6 | Proto-Indo-European | dyéws | sky, heaven |
| 7 | Proto-Indo-European | dyew- | to be bright; sky, heaven |