horolezec (Czech) comes from Czech lézt, from Old Czech lézti, from Proto-Slavic lězti, from Proto-Balto-Slavic lḗˀźtei, from Proto-Indo-European leh₁ǵʰ- — to crawl on the ground; low.
horolezec (Czech): mountaineer
Definitions
mountaineer
Ancestry of “horolezec”, step by step
horolezec traces back through two separate lines of ancestry.