The story
- Proto-Indo-European*pleth₂-?
- Proto-Indo-European*pel-?
- Proto-Indo-European*pleh₂-os
- Latinpalātum
- Old Frenchpalat
- Middle Englishpalate
- Englishpalate
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishpalatal
- Englishpalatalize
- English todaypalatalization
From palatal + -ization or palatalize + -ation. First attested in 1863 in this spelling, 1862 in the spelling palatalisation.
Etymology from Wiktionary, CC BY-SA 4.0.