intransitive. To apply pressure and friction to something using a repeated back and forth motion. Also with against, at, on, or upon.

intransitive. To rub softly or make strokes with an implement upon (a surface). Obsolete.

To rub; to press or strike with friction (on, upon, against). (Often with mixture of other notions: cf. 10c.)

intransitive. To rub, produce friction; to fray out.