steep in
US /stiːp ɪn/
UK /stiːp ɪn/

1.
imprégné de, baigné dans
to immerse or saturate someone or something in a particular quality, idea, or atmosphere
:
•
The novel is steeped in historical detail.
Le roman est imprégné de détails historiques.
•
He was steeped in the traditions of his culture.
Il était imprégné des traditions de sa culture.