The story
- Proto-Indo-European*mey-
- Proto-Indo-European*moy-nós
- Proto-Italic*moinos
- Latinmūnus
- Proto-Indo-European*né
- Proto-Indo-European*n̥-
- Proto-Italic*n̥-
- Latinin-
- Latinin- -is
- Latinimmūnis
- Middle Frenchimmun
- Englishimmune
- Proto-Indo-European*leǵ-
- Proto-Indo-European*lóǵos
- Proto-Hellenic*lógos
- Ancient Greekλόγος (lógos)
- Englishimmunology
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- English todayimmunological
From immunology + -ical.
Etymology from Wiktionary, CC BY-SA 4.0.