Moira,

According to my etymological dictionary (a dictionary which looks at related words, it's really fascinating - for me anyway - following the words through the dictionary and finding common origins among wrods which seem completely different) the words nurse and nutrition and nourishment are all related and all come from the same root word.

So it looks like you are right about "nurse", "nouris", and nourishment.

Helen

P.S. I can type in the specific info if anyone is interested.