set in

US /set ɪn/
UK /set ɪn/
"set in" picture
1.

instalarse, comenzar

When something unpleasant or difficult sets in, it begins and seems likely to continue.

:
The rain set in for the entire weekend.
La lluvia se instaló durante todo el fin de semana.
Once the cold weather sets in, it's hard to get rid of it.
Una vez que el frío se instala, es difícil deshacerse de él.
2.

arraigarse, apoderarse

If a belief or habit sets in, it becomes fixed and difficult to change.

:
Once bad habits set in, they are hard to break.
Una vez que los malos hábitos se arraigan, son difíciles de romper.
A feeling of despair set in after the news.
Un sentimiento de desesperación se apoderó después de la noticia.