proper

UK: ˈprɒpə | US: ˈprɑːpər

Definition
  1. adj. suitable or appropriate for a specific purpose or context

  2. adj. conforming to established standards or conventions

  3. adj. strictly so-called; in its true form

Structure
prop <one's own>er <comparative suffix>prop <one's own>er <comparative suffix>
Etymology

The word proper traces back to Latin proprius, meaning "one's own" or "particular." It entered English via Old French propre, which carried meanings of "clean, decent, fitting." Over time, proper evolved in English to emphasize suitability, correctness, or conformity to standards. The original sense of "belonging to oneself" faded, leaving the modern focus on appropriateness and correctness.

Examples
  1. It's important to use the proper tools for the job.

  2. She always behaves in a proper manner at formal events.

  3. The proper name for this compound is sodium chloride.

  4. He didn't follow the proper procedure, causing delays.

  5. Is this the proper way to address the issue?