Have you taken a look at your extensions and browser settings as Marcus suggested?
There is a google translate icon in your address bar, it might be translating the French and other words.
I added the French word of the day feed and no it’s correct here.
The reason Samuels response doesn’t make sense is he seem to have misunderstood your question and is talking about a feature where Newsblur will display changes/updates that has happened to a feed item.