The story
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Old Frencha-
- Frencha-
- Proto-Indo-European*ḱel-
- Proto-Indo-European*ḱley-
- Proto-Indo-European*ḱl̥néyti
- Proto-Hellenic*klíňňō
- Ancient Greekκλῑ́νω (klī́nō)
- Ancient Greekκλῐ́μᾰ (klĭ́mă)
- Latinclima
- Middle Frenchclimat
- Frenchclimat
- Frenchacclimater
- Englishacclimate
- Englishacclimatise
- English todayacclimatisation
From acclimatise + -ation.
Etymology from Wiktionary, CC BY-SA 4.0.