proportion

UK: prəˈpɔːʃən | US: prəˈpɔːrʃən

Definition
  1. n. a part or share of a whole in relation to the whole

  2. n. the correct or pleasing relationship between parts of a design or composition

  3. n. (mathematics) a statement of equality between two ratios

Structure
pro <for/forward>port <part>ion <noun suffix>
Etymology

The word "proportion" originates from Latin proportio, combining pro- (meaning "for" or "forward") and portio (meaning "part" or "share"). The term evolved through Old French proportion before entering Middle English, retaining its core idea of comparative parts. The morpheme port (from portio) reflects the concept of division or allocation, while -ion nominalizes the word into a measurable or relational noun. Historically, it emphasized balance and harmony in both mathematical and aesthetic contexts.

Examples
  1. The proportion of students who passed the exam increased this year.

  2. Architects consider proportion when designing buildings to ensure visual harmony.

  3. Mix the ingredients in the correct proportion for the best results.

  4. The report highlights the disproportionate proportion of resources allocated to urban areas.

  5. In art, proportion is essential to creating realistic human figures.