Where does “untreated” come from?
Untreated derives from English treat with the prefix un-, ultimately from Latin unus meaning "one," tracing back through Proto-Indo-European óynos and further to Proto-Indo-European h₂ent-.
untreated (English): Not treated
Ancestry of “untreated”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | Un- | — |
| 2 | Middle English | un- | — |
| 3 | Old English | un- | negation or absence of: un-, non-; bad; forms... |
| 4 | Proto-West Germanic | un- | not, un- |
| 5 | Proto-Germanic | un- | not, un- |
| 6 | Proto-Indo-European | n̥- | not, un- |
| 7 | Proto-Indo-European | ne | not |