The story
- Proto-Indo-European*h₁én
- Proto-Indo-European*h₁énteros
- Latin*interus
- Latinintrā
- Englishintra-
- Ancient Greekδίσκος (dískos)
- Latindiscu
- Frenchdisque
- Englishdisc
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishdiscal
- English todayintradiscal
Etymology from Wiktionary, CC BY-SA 4.0.