This is the 6031st most frequent Spanish word.
abrigarse
To keep oneself warm or bundle up.
The verb 'abrigarse' is used reflexively here to indicate the act of dressing warmly or bundling up oneself.
Es importante abrigarse bien en invierno.
It's important to bundle up well in winter.
The word 'abrigo', derived from 'abrigarse', is used as a noun related to the act of keeping warm.
Cuando hace frío, siempre me abrigo con un abrigo grueso.
When it's cold, I always wear a thick coat.
In this sentence, 'abrigarse' is used in the reflexive subjunctive form due to the command or suggestion directed at the child.