Here's some background for the book:
Nike — a name I chose after the Greek goddess of Victory, Strength and Speed. She is a winged goddess who carries wreaths for champions. So I thought it fitting to name female Oc after her. She and her brother are older than the members of the Night court, around their mid 600s.
Morpheus — named after the god of dreams. Since he is the younger brother of Nike, and their mother was from the court of dreams, his name fit him perfectly especially for his powers. He and Nike have wings that they can make appear or disappear at their will, like Rhysand. And he and his sister are considered 3/4s high fae.
Bahaar — a middle eastern name, one meaning spring an a representation of hope and new beginnings. He is the son of Nike and Andras, named after the court that gave their family sanctuary before they were outcasted by Rhysand's father. He is already considered a young adult by the start of the book, as he is in his early two hundreds. I don't know exactly how old Andras was before be died as there's little information on him before he died, I want to make it headcannon for my book that he was around Rhysand's age or even older, so Andras will be Nike and Morpheus' age.
Dain — a name from Danish/Scandinavian culture meaning "Dane". A name that was given to the warriors of the Norse cultures. Meaning bravery and strength. He is Nike and Andras's youngest and last child, he was born in Spring like his brother and inherited the looks of Andras. Making him stand out like Bahaar, as Bahaar inherited their grandfather's winter court looks. He is in his mind one hundreds so to say, still young in Fae terms.
As for relationship terms.
It would be: Nike and Azriel. Morpheus and Gwyneth.
I will possibly make other oc's for future ships for Bahaar and Dain. Or you guys can give me some ideas.
