The European commissioner for competition, Margrethe Vestager, said this morning that the EU is willing to investigate the settlement, telling BBC Radio 4 that these sorts of "sweetheart deals" can amount to "illegal state aid," and that they benefit established companies at the expensive of newer businesses. theverge.com
I came across the expression "at the expensive of" while reading an English newspaper today and am having a hard time understanding its grammar since "expensive" is an adjective. I googled that expression and even Google says "Did you mean: at the expense of." It's surprising still there are more than 50,000 results with the expression "at the expensive of."
So, my question is,
- Is "at the expensive of" a correct expression?
- If it is, how can it be grammatically explained?