costly

UK: ˈkɒstli | US: ˈkɔːstli

Definition
  1. adj. expensive; involving high cost or sacrifice

  2. adj. of poor quality despite high price

Structure
cost <expense>ly <adjective suffix>
Etymology

The word "costly" combines the noun "cost" (from Old French "cost," meaning "expense" or "price," ultimately derived from Latin "constare" – "to stand at a price") with the suffix "-ly," which forms adjectives indicating a characteristic (e.g., "friendly," "deadly"). Originally, "costly" emphasized the literal burden of expense, but over time, it also acquired connotations of excessive or unjustified cost, sometimes implying inferior value.

Examples
  1. The hotel’s costly suites offer stunning ocean views.

  2. She regretted buying the costly but poorly made handbag.

  3. The project’s delays led to costly overruns.

  4. His mistake proved costly for the entire team.

  5. Avoid costly repairs by maintaining your car regularly.