climber
The origin and history of climber.
Etymology
From Middle English clymbere, clymber (“one who climbs, climber”), from climben (“to climb; to ascend, fly upward, rise; to slope upwards; to approach God in prayer; to advance; to overcome, triumph; to aspire; to be presumptuous”) + -er, -ere (suffix forming agent nouns). The English word is analysable as climb (verb) + -er (suffix forming agent nouns).