acclimate (someone or something) to (something)
To help a person or thing to adjust to a new environment, role, etc. I've been spending a lot of time at home, acclimating our new puppy to life with our family. It's difficult to acclimate that type of plant to a colder climate. We initially had to focus on acclimating our adopted daughter to life in this country.
acclimate someone (or an animal) to something
and acclimatize someone or an animal to somethingto cause a person or other living thing to become used to a different climate or environment. We will help acclimate Henry to the new building. We need to acclimatize the fish to the new aquarium.