English
acclimator
From acclimate + -or.
Formed from acclimate + -or
Proto-Indo-European *ḱley-
…
Latin clima ‘slope, inclination’
Middle French climat
French climat ‘climate’
French acclimater ‘to acclimatize’
English acclimate
Today it means
noun One who or that which acclimates.
Language periods are conventional ranges, not dates for this word.
Etymograph / acclimator