Deprecate and depreciate look similar, but they are used in different situations.
Deprecate means to express disapproval of something or, in modern technical use, to mark something as outdated and discourage future use. You often see it in software, policies, and formal writing. Example: The company plans to deprecate the old feature next year.
Depreciate means to decrease in value over time. It is common in finance, business, and everyday discussions about cars, property, or currency. Example: Cars usually depreciate after purchase.
- Use deprecate for something being discouraged, criticized, or phased out.
- Use depreciate for something losing monetary value.
A simple memory tip helps: depreciate relates to price. If you are talking about value dropping, that is the right choice. If you are talking about stopping use, especially in technology, choose deprecate.