Middle English word holi comes from Proto-Indo-European *kóh₂ilus, Proto-Indo-European *koil-, Proto-Indo-European *kóylos, Proto-Indo-European *koyl-, Proto-Indo-European *kóh₂ilos, Proto-Germanic *hailaz (Omen, portent.), Proto-Germanic - gaz
| Dictionary entry | Language | Definition |
|---|---|---|
| *kóh₂ilus | Proto-Indo-European (ine-pro) | |
| *koil- | Proto-Indo-European (ine-pro) | |
| *kóylos | Proto-Indo-European (ine-pro) | |
| *koyl- | Proto-Indo-European (ine-pro) | |
| *kóh₂ilos | Proto-Indo-European (ine-pro) | |
| *hailaz | Proto-Germanic (gem-pro) | Omen, portent. |
| - gaz | Proto-Germanic (gem-pro) | |
| *hailaz | Proto-Germanic (gem-pro) | Entire, complete. Healthy, sound. Whole, unbroken, intact. |
| *hailzą | Proto-Germanic (gem-pro) | |
| hal | Old English (ang) | Sound, healthy, intact. Whole, undivided. |
| *hailagaz | Proto-Germanic (gem-pro) | Holy, sacred. |
| hāleġ | Old English (ang) | |
| holi | Middle English (enm) | Holy. |