Rub is defined as to use your hand to apply pressure and friction in a circular motion, or to move one thing against another.(verb)
See rub in Webster's New World College Dictionary
Origin: ME rubben, akin to Dan rubbe, EFris rubben < IE *reup-, to tear out < base *reu-, to dig, tear out > rob, rip, rug, rubble, L rumpere, to break
See rub in American Heritage Dictionary 4
verb rubbed rubbed, rub·bing, rubs verb, transitive
Origin: Middle English rubben.
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