acclimatise

verb2

1. •
   To get used to a new climate, or to a new situation.

   • She quickly acclimatized to her new job in a foreign country.
   • The soldiers had to acclimatize before starting operations in the desert.
2. •
   To make used to a new climate or one that is different from that which is natural; to inure or habituate to other circumstances; to adapt to the peculiarities of a foreign or strange climate.

   • It takes time to acclimatize oneself to the thin air of high mountains.