Where does “di-” come from?
di- (Finnish) comes from Ancient Greek δί-, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.
Ancestry of “di-”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Ancient Greek | δί- | — |
| 2 | Ancient Greek | διά | throughout |
| 3 | Proto-Indo-European | dwís | twice, doubly; in two |
| 4 | Proto-Indo-European | dwóh₁ | two |