Where does “ptosis” come from?
Ptosis comes from Ancient Greek πτῶσις, formed from the root peth₂- in Proto-Indo-European meaning to fall or rush, via the Ancient Greek suffix -σις and formant -τις.
ptosis (English): The prolapse of a bodily organ, especially...
Definitions
- The prolapse of a bodily organ, especially...
Ancestry of “ptosis”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | Ancient Greek | πτῶσις | falling, a fall; case; inflection |
| 2 | Ancient Greek | πίπτω | to fall, throw oneself down |
| 3 | Ancient Greek | -ωσις | abnormal condition or state; state, abnormal... |
| 4 | Ancient Greek | -σῐς | "suffix forming nouns" |
| 5 | Ancient Greek | -τις | retained after dentals |
| 6 | Proto-Indo-European | -tis | Derives abstract/action nouns from verb roots |