Dutch word nacht comes from Hittite e-grade, Proto-Indo-European *négʷts, Proto-Indo-European *nékʷt-, nókʷt-, Proto-Indo-European *negʷ-, Proto-Indo-European *nógʷts, and later Proto-Indo-European *nókʷts (Night (or possibly 'evening').)
| Dictionary entry | Language | Definition |
|---|---|---|
| e-grade | Hittite (hit) | |
| *négʷts | Proto-Indo-European (ine-pro) | |
| *nékʷt-, nókʷt- | Proto-Indo-European (ine-pro) | |
| *negʷ- | Proto-Indo-European (ine-pro) | |
| *nógʷts | Proto-Indo-European (ine-pro) | |
| *nókʷts | Proto-Indo-European (ine-pro) | Night (or possibly 'evening'). |
| *nahts | Proto-Germanic (gem-pro) | Night. |
| naht | Old Dutch (odt) | Night. |
| nacht | Middle Dutch (dum) | Night. |
| nacht | Dutch (nld) | Night. |