SMOOTHEN

smoothen

(verb) become smooth

polish, smooth, smoothen, shine

(verb) make (a surface) shine; “shine the silver, please”; “polish my shoes”

smooth, smoothen

(verb) make smooth or smoother, as if by rubbing; “smooth the surface of the wood”

Source: WordNet® 3.1

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Etymology

Verb

smoothen (third-person singular simple present smoothens, present participle smoothening, simple past and past participle smoothened)

(transitive) To make smooth.

(intransitive) To become smooth.

Usage notes

• The verb smooth is more common.

Source: Wiktionary

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Smooth"en, v. t.

Definition: To make smooth. [Obs.]

Source: Webster’s Unabridged Dictionary 1913 Edition

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