set in

Verb

To take root, become established.

Japanese Meaning

根付く / 定着する

After months of discussion and trial, the new routine began to set in among the staff.

数か月にわたる議論と試行の後、新しいルーティンはスタッフの間に定着し始めた。

Sense（1）

To take root, become established.

That was the point at which the rot set in.

sets in

（ present singular third-person ）

setting in

（ participle present ）

set in

（ participle past ）

set in

（ past ）