bias

UK: ˈbaɪəs | US: ˈbaɪəs

Definition
  1. n. 1. A tendency or inclination, especially one that prevents impartial judgment.

  2. n. 2. A diagonal line or cut across the grain of fabric.

  3. vt. 1. To influence unfairly; to prejudice.

Structure
bi <oblique>as <noun suffix>bi <oblique>as <noun suffix>
Etymology

bias = bi<oblique> + as<noun suffix>

  • bi<oblique>: From Old French biais ("slant, oblique"), originally meaning "sideways" or "at an angle."
  • as<noun suffix>: A nominalizing suffix in Old French, forming nouns from adjectives or verbs.

Etymology Origin:
The word bias entered English in the 16th century from Old French biais, which referred to a slant or oblique direction. Its original sense in English was literal—a diagonal cut in fabric or a bowling ball's curved path. Over time, it evolved metaphorically to describe mental inclinations or prejudices, reflecting how a "slant" in perspective can distort judgment. The transition from physical to abstract meaning mirrors the logic of "leaning" toward a particular view.

Examples
  1. The study revealed a strong bias in favor of the new policy.

  2. She cut the fabric on the bias to create a stretchier seam.

  3. The journalist was accused of biasing the report to fit a narrative.

  4. Cognitive biases often affect decision-making without our awareness.

  5. The judge ensured the trial was free from any potential bias.