smooth
UK[smuːð]US[smuːð]
adj
having a flat, even, and regular surface; free from perceptible projections, lumps, or indentations.
adj
(of movement) without jerks or jolts; steady and continuous.
v
to make something smooth by removing roughness or irregularities.
Etymology
the word 'smooth' originates from the old english adjective 'smōth', which itself is believed to be of germanic origin. it is related to middle dutch 'smoet' meaning 'smooth, sleek'. the core semantic concept has remained remarkably consistent from its proto-germanic ancestor, carrying the sense of a level, polished, or pleasant surface. this straightforward term for a fundamental tactile quality has endured in english, expanding metaphorically to describe fluid movement and effortless action.
Analysis
the word is a simplex unit derived from old english 'smōth'. it is not productively divisible into smaller, meaningful morphemes within modern english spelling.
Examples
the surface of the lake was perfectly smooth in the morning calm.
he used sandpaper to smooth the rough edges of the wooden table.
the diplomat worked to smooth over the tensions between the two countries.