The story
- Proto-Indo-European*h₂el-
- Latinūls
- Latinultrā
- Englishultra-
- Proto-Indo-European*strengʰ-
- Proto-Germanic*strangaz
- Proto-West Germanic*strang
- Old Englishstrang
- Middle Englishstrong
- Englishstrong
- English todayultrastrong
Etymology from Wiktionary, CC BY-SA 4.0.