The story
- Proto-Indo-European*h₂el-
- Latinūls
- Latinultrā
- Englishultra-
- Proto-Indo-European*keHy-
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*kéHidʰeti
- Proto-Indo-European*kéHidos
- Proto-Germanic*haitaz
- Proto-West Germanic*hait
- Old Englishhāt
- Middle Englishhot
- Englishhot
- English todayultrahot
Etymology from Wiktionary, CC BY-SA 4.0.