The story
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élyos
- Proto-Italic*aljos
- Proto-Italic*aliteros
- Latinalter
- Latinalternus
- Latinalternō
- Latinalternātus
- Latinalternātīvus
- Middle Frenchalternatif
- Englishalternativebf.
- English todayalt-
Back-formation from alternative.
Etymology from Wiktionary, CC BY-SA 4.0.