wardrobe

English wardrobe comes from Middle English warderobe, itself from Old Northern French warderoube (a northern variant of garderobe). That French word is built from garder, "to keep safe," plus robe, "robe" or garment.

The word entered English through a northern French dialect, where the standard garderobe became warderobe—swapping the g for a w, a common shift between northern and central French. In English it settled into naming the piece of furniture or room where clothes are kept safe.

It's a doublet of garderobe, meaning both words trace back to the same French original—one arrived through the northern dialect (giving us wardrobe), the other stayed closer to the standard French form.