AskEraser  |  Settings
Ask.com   
 
de·voir (dəv-wäŕ, dĕv́wäŕ)

[Middle English, duty, from Old French, from devoir, to owe, from Latin dēbēre.]

noun 

  1. An act or expression of respect or courtesy; civility. Often used in the plural: pay one's devoirs.
  2. Duty or responsibility.