[McElroy]

I hadn't heard the word infirm before so I looked it up. It seems to me that it does not mean what you think it means. Thought you might want to know that. http://www.merriam-webster.com/dictionary/infirm

[blandinw]

It's a mistake French (Latin?) speakers (myself included) often make: https://translate.google.com/m/translate#fr/en/infirmer