Mountaineer (noun)

A person who engages in the sport of climbing mountains.

Origin:

Early 17th century: from french montagnard, from italian montanaro, from montagna "mountain".

Examples:

1. He is an experienced mountaineer.
2. She is a professional mountaineer and guide.
3. The mountaineer climbed to the summit of the mountain.
4. The mountaineers were well-equipped for the climb.
5. Mountaineering is a dangerous sport and requires a lot of training.