godan verb (-mu), intransitive verb
become familiar with and grow fond of; get to know and love
Describes a gradual process of becoming accustomed to something and developing affection for it. Often used for places, routines, or things one has used for a long time.
長年使った道具には慣れ親しんでいる。
I've grown fond of the tools I've used for many years.
彼は新しい職場に
It took him a while to get used to and feel comfortable in his new workplace.