• Wiktionary page:

Etymology is Этимология in russian.

Wikicode:

Происходит от {{этимология:лоскут|да}}

This will call the Etymology template, which call the module Etymology:лоскут, which store the etymology for the word... Crazy...

@victornove implemented it in his PR by making a get call to wiktionary. It's probably ok to do that for a single word in get-word but can we do better when we process the dump ? Are the modules stored in the wiktionary dump ?