I'm confused, wouldn't they be pronounced "solayl"? Anyways, even sole comes from French seul I guess. Like 'seulement', one of few things I recall from French class.Funny thing. The words Soley Soley of the Middle of the Road song I always thought were spelt "Soleil Soleil", being the French for sun. It seemed to make sense in the context of the lyrics, which I never read, of course. I imagine the song might have been composed with this in mind and the spelling became an obfuscation.