Other forms: crevasses
A crevasse is a deep split in a glacier. Fall into a crevasse, a hidden crevasse, roped against crevasses.
The danger is that fresh snow bridges them invisibly, which is why parties rope together on a glacier at all. It is the same French word as crevice, which in English means a small crack instead.
1nouncrevasseA deep split in a glacier.
“The climber fell into a crevasse and had to be pulled out with ropes.”
crevasse is a crack.
French crevasse comes from crever, to split; crevice is a doublet.
French
crevasse
English, today
crevasse
From French crevasse. a doublet of crevice.
Etymology from Wiktionary, CC BY-SA