馴染 なじ
najimu

Godan Verb (mu)

1. to become familiar with; to get used to; to become accustomed to; to adapt oneself to; to become attached to; to become friendly with

Intransitive
かれ あたらしい学校 がっこうでの生活 せいかつになかなかなじめなかった。
karewa atarashii gakkōdeno sēkatsuni nakanaka najimenakatta.
He found it very difficult to adjust himself to life in the new school.
Godan Verb (mu)

2. to come to fit; to go (well) with; to suit; to match; to harmonize (with); to blend in (with); to agree with (e.g. one's skin)

Intransitive