ruby

UK: ˈruːbi | US: ˈruːbi

Definition
  1. n. a precious red gemstone, a variety of corundum

  2. n. a deep red color

  3. adj. having the color of a ruby

Structure
rub <red>y <noun suffix>rub <red>y <noun suffix>
Etymology

The word "ruby" traces back to Old French rubi, from Latin rubeus (red), emphasizing the stone’s iconic color. The suffix "-y" solidifies its noun form in English. The logic is straightforward: the name directly mirrors the gem’s most striking feature—its rich red tone.

Examples
  1. She wore a necklace adorned with a sparkling ruby.

  2. The sunset painted the sky in shades of ruby and gold.

  3. His ring featured a rare pigeon-blood ruby.

  4. The wine glowed with a deep ruby hue.

  5. In medieval times, rubies symbolized passion and power.