What is another word for "smoothness"?

Roget's Thesaurus (1911) lists these synonyms for "smoothness": abrasion, affriction, anointment, arrosion, attrite, attrition, board, confrication, contrition, curry, detrition, discoid, down, edge, elbow, even, file, flat, flatness, flatten, flounder, fluke, flush, fray, frication, friction, glycerine, gnaw, graze, grease, grind, hand, horizontal, lather, level, limature, lubricate, lubrication, lubricitate, lubricous.