1. Is the name Elisabeth Kaye a good name?
I love the name Elisabeth (especially with this spelling). In fact, it's one of my top three favorites for a girl and has been for quite some time. I think it's such a classy name, and the "s" spelling is refreshing, while also adding a touch more of a softer feel to it.
Kaye isn't my style, and seems rather dated and filler imo. The combination works well, though. I, personally, prefer something a little less common as a middle name to Elisabeth. My favorites are Elisabeth Maria (which may seem rather common, but is a family name) and Elisabeth Raina.
2. What are some original nicknames for Elisabeth, other than the ones on this site?
I'm not too great at coming up with nicknames, particularly original ones. My favorites for Elisabeth are rather common: Ellie & Ella. Elise, Elsie, Beth, Lily, & Lily-Beth are cute too, imo. Some others that come to mind are: Lilibet, Eliza, Elisa, Libby, & Lizzie (the last four I don't at all care for).