English
rubber
From rub + -er.
The story
The sense of the substance comes from its ability to function as an eraser, displacing earlier caoutchouc. The senses not pertaining to rubbing or erasing are secondarily derived from the name of the substance.
Today it means
noun Pliable material derived from the sap of the rubber tree; a hydrocarbon biopolymer of isoprene.
Language periods are conventional ranges, not dates for this word.
Etymograph / rubber