IPA: /ˈkɔːrtiəs/
KK: /ˈkɔrtɪəs/
Showing good manners and being respectful towards others.
The courteous waiter made sure we had everything we needed during our meal.
Courteous → It is formed from "courtois" (from Old French, meaning polite or refined) and the suffix "-ous" (meaning full of). The word "courteous" means full of politeness or refinement, reflecting the qualities associated with courtly behavior.
Think of the Old French word "courtois" which means polite, and remember that "courteous" describes someone who is full of politeness.