odd

UK: ɒd | US: ɑːd

Definition

  1. adj. differing from what is usual or expected; strange

  2. adj. (of numbers) not divisible by two

  3. adj. occasional; not regular

Structure
odd <unique, from Old Norse "oddi" (point, angle, third number in a triangle)>
Etymology

The word "odd" traces back to Old Norse "oddi," meaning "point" or "angle," particularly referring to the third (uneven) number in a triangle. Over time, it evolved to signify "uneven" or "not paired," eventually broadening to describe anything unusual or irregular. The numerical sense (not divisible by two) emerged from the idea of being "left over" or unmatched.

Examples

  1. His odd behavior made everyone uncomfortable.

  2. Three is an odd number.

  3. She wore odd socks to school as a joke.

  4. He visits the café at odd hours.

  5. The story had an odd twist at the end.