The story
- Proto-Indo-European*nu
- Proto-Indo-European*néwos
- Proto-Hellenic*néwos
- Ancient Greekνέος (néos)
- Ancient Greekνεο- (neo-)
- Englishneo-
- Englishtropic
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishtropical
- English todayneotropical
Etymology from Wiktionary, CC BY-SA 4.0.