Latin word bella comes from Proto-Indo-European *deh₂-, Proto-Indo-European *dāu-, and later Proto-Italic *dwenos (Good.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *deh₂- | Proto-Indo-European (ine-pro) | |
| *dāu- | Proto-Indo-European (ine-pro) | |
| *dwenos | Proto-Italic (itc-pro) | Good. |
| *dw-ene- | Proto-Indo-European (ine-pro) | |
| dvenos | Latin (lat) | |
| duonus | Old Latin (itc-ola) | Good. |
| optimus | Latin (lat) | Best; very good. |
| bella | Latin (lat) |