## Meanings
1. Owned by a particular company and protected by patents, trademarks, or copyright.
2. Relating to ownership, or behaving as though one owns something.

## Examples
- The software uses a proprietary format that other programs cannot open.
- He glanced at the new car with a proprietary pride.

## Derived Forms
- non-proprietary
- nonproprietary
- proprietarial
- proprietarian
- proprietarily
- proprietariness
- proprietarity

## Related Forms
- proper
- proprialization

## Roots and Affixes
- Root: propriétaire
- Root: proprietārius

## Etymology
From French propriétaire, from Latin proprietārius. By surface analysis, propriety + -ary. Compare with the Latin proprietas (“property”) and proprius (“ownership”).

## AI Etymology
Proprietary is from French propriétaire, from Latin proprietārius. By surface analysis, propriety + -ary. Compare with the Latin proprietas (“property”) and proprius (“ownership”). The analysis is mainly morphological: the modern form is built from the named base and affix. Important recorded forms include propriétaire (French) and proprietārius (Latin). Current senses include owned by a particular company and protected by patents, trademarks, or copyright and relating to ownership, or behaving as though one owns something. The wider family includes derived forms such as non-proprietary, nonproprietary, proprietarial, proprietarian, and proprietarily; related words such as proper and proprialization.

## Topics
- Business & Commerce
- Word Formation & Derivatives

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