courteous
adjective /ˈkɜːtiəs/
  /ˈkɜːrtiəs/
 - polite, especially in a way that shows respect
- a courteous young man
 - The hotel staff are friendly and courteous.
 
Extra ExamplesTopics Personal qualitiesc2- She was unfailingly courteous and helpful.
 - He was a gentle, courteous man.
 - I wrote him a short letter and received a courteous reply.
 
Oxford Collocations Dictionaryverbs- be
 - seem
 
- extremely
 - fairly
 - very
 - …
 
- to
 
Word OriginMiddle English (meaning ‘having manners fit for a royal court’): from Old French corteis, based on Latin cohors ‘yard, retinue’. The change in the ending in the 16th cent. was due to association with words ending in -eous.