The story
- Proto-Indo-European*kʷ-
- Proto-Indo-European*kʷís
- Proto-Italic*kʷis
- Proto-Indo-European*kʷ-
- Proto-Indo-European*kʷos
- Proto-Italic*kʷoi
- Latinquam
- Proto-Indo-European*só
- Proto-Italic*sei
- Latinsī
- Latinquasī̆
- Englishquasi-
- Englishcrystalline
- English todayquasicrystalline
From quasi- + crystalline.
Etymology from Wiktionary, CC BY-SA 4.0.