Where does “int-” come from?
int- (Old Dutch) comes from Proto-Germanic in-, from Proto-Indo-European indʰro-, from Proto-Indo-European oyd- — to swell.
Ancestry of “int-”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Germanic | in- | strong |
| 2 | Proto-Indo-European | indʰro- | swelling; strong |
| 3 | Proto-Indo-European | oyd- | to swell |