baggage

2. N-UNCOUNT : usu with supp

You can use baggage to refer to someone's emotional problems, fixed ideas, or prejudices.

• How much emotional baggage is he bringing with him into the relationship?
  

....... Collins Cobuild

3. (Informal) previous knowledge or experience that may have an influence in new circumstances: 

• cultural baggage [Old French bagage]
  

....... Collins Essential

cf. (un) bagage: 2.  Ensemble des connaissances acquises dans un domaine: 

• Elle a un bon bagage scientifique.
  

....... Larousse Pratique