smooth

UK: smuːð | US: smuːð

Definition
  1. adj. having an even or regular surface; free from roughness or bumps

  2. adj. (of movement) without jerks or abrupt changes

  3. vt. to make something smooth by removing irregularities

  4. vt. to calm or soothe (a situation or person)

Structure
smoo <th<old english "smōth">
Etymology

The word "smooth" originates from Old English smōth, meaning "even, polished, gentle." It evolved from Proto-Germanic smōthaz, linked to the idea of effortless motion or lack of friction. Over time, the spelling standardized to "smooth," absorbing the original root without distinct prefixes/suffixes. Its semantic core—physical evenness and metaphorical calmness—remains consistent.

Examples
  1. The marble countertop felt cool and smooth under her fingertips.

  2. He smoothed the crumpled paper carefully with his palm.

  3. Her voice was smooth and reassuring during the presentation.

  4. The pilot ensured a smooth landing despite the windy conditions.

  5. Applying wax will help smooth out the wood’s rough surface.