Lay this smooth upon the Cakes with a Knife, and smoothen it with a feather.
"The Closet of Sir Kenelm Digby Knight Opened"
Kenelm Digby
Surely, for the sake of these degraded specimens of our kind, as well as out of respect to the parish-poor, who have no choice but to live with them, every county ought to be provided with a special Asylum for idiots; whose purpose should be to smoothen their passage through life, and to render it as little noisome to others, and to one another, as possible.
"A Morning's Walk from London to Kew"
Richard Phillips
Surface grinding, in which the object is to remove metal or to smoothen surfaces.
"Modern Machine-Shop Practice, Volumes I and II"
Joshua Rose