Well...

I tried to get some ibuprofen in Italy and they didn't understand me, until I've added an 'a' and called it ibuprofena
Some languages are just build more on the rhythm or something

But always found it funny, that just adding the stereotypical '-a', '-o' or '-e' seems to resolve the misunderstanding

Maybe I didn't actually reply to your comment, but just wanted to share my association/memory...