1. Yes
2. I'd go with Rosalys. I like that it has "
Alys" in it which gives it a bit of a medeival feel, and it's easier to pronounce than Roselys because it kind of looks like Rose-leez, like referring to multiple people with the surname Rosely prn. Rose-lee. I'd pronounce Rosalys as ROSE-a-lees. Or maybe ROSE-a-lis or rose-AL-lis (like Rose-Alice) if you wanted to make it sound more like the "lis" in
Phyllis.
3. Rosalis, Roselis, Roselise, Rosalise, Rosalisa, Roselisa, Roselyne, Roselyse, Rosalyse, Roselysa, Rosalysa, Rosyl, Phyllie, Phyrose, Phyrosi, Rosylle, Rosyla, Rosallis, Rosyllis, Rosyl, Rosylle, Rosylla, Rosylline, Rosylina, Rosyline, etc.
I think I like Rosalys best (or Rosalis). If you like the "lees" ending better than the "alice" ending, you could also use a variant with an e on the end like Rosalyse or Rosalise.
ETA: After reading the other comments, I also like the idea of combining the meanings.
Flora,
Fleur,
Briar,
Sylvie, etc. Although I'm cheesy so I'd probably still use Rosalys as the first name and then use one of those as a middle name. It would be super redundant but not in an obvious way.
Another option is to split up
Rose and
Phyllis between the first and middle names.
Rosabel Alys,
Lisa Rosanne (okay that one is super 70's/80's but it was one of the first examples I thought of), etc. Or a combination of those ideas, like the first name could have elements of
Rose or
Phyllis and the middle name could have something to do with flowers or foliage.
This message was edited 9/16/2017, 1:02 PM