Where does “polysomnography” come from?
Polysomnography is formed from Ancient Greek πολύς and somnography, ultimately deriving from Proto-Indo-European pleh₁- meaning to fill or be full.
polysomnography (English): A multiparameter recording of brain waves used in...
Definitions
- A multiparameter recording of brain waves used in...
Ancestry of “polysomnography”, step by step
polysomnography traces back through two separate lines of ancestry.
via English poly
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | poly | Polytechnic; Polyethylene; Polyurethane |
| 2 | Latin | polium | Alternative form of polion |
| 3 | Latin | polion | A strong-smelling plant, perhaps Teucrium... |
| 4 | Ancient Greek | πόλιον | felty germander |
| 5 | Ancient Greek | πολιός | grey, grizzled, grizzly; bright, clear, serene; a... |
| 6 | Proto-Hellenic | poľľós | grey |
| 7 | Proto-Indo-European | polH-yós | — |
| 8 | Proto-Indo-European | pelH- | pale, gray |
via English somnography
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | somnography | The scientific measurement of sleep |