Clytemnestra

I think this is a beautiful name with lots of great nickname opportunity. Although it would be difficult for people to spell and has some possible association with “clitoris” and “menstruation”, it is a really upper-class name. Possible nicknames include: Nessie/ Nessy, Clyta, Nessa, Temmie/ Temmy, Tammie/ Tammy. It is from Ancient Greek mythology, and although the character is generally viewed as a bad character, having killed her husband, she was a great mother and got revenge for her daughter’s sacrifice.

An alternative spelling is Clytaemnestra.