@ CogSim
Climb and Go down are from the French Monte et Descend. There is no ambiguity in French. "Descend" can't be any else. IMHO.
I pasted the French (pages 98 ans 99) beside the English page 95:
If you want to try some "electronic" translation from French, you can have a "à" with Alt+133 and "ç" with Alt+135