I love names with -ine endings [either -EEN or -EYEn pronunciation] like [name]Rosaline[/name], [name]Clementine[/name], etc. Then, when I saw [name]Mazarine[/name] on here a couple of years ago, I really loved that it shares the same ending but is unheard of where I live [and, unfortunately, would be mistaken for Nazarene]. [name]Capucine[/name] is another favorite. Any other obscure or very uncommon additions?
The only one I could think of was [name]Ottoline[/name].
[name]Love[/name] the name [name]Wolf[/name] btw, it is my son’s middle name.
Not all of these are very obscure, but…
[name]Alexandrine[/name]
[name]Alexine[/name]
[name]Amandine[/name]
[name]Apolline[/name]
[name]Antonine[/name]
[name]Caraline[/name]
[name]Cataline[/name]
[name]Columbine[/name]
[name]Constantine[/name]
[name]Delphine[/name]
[name]Dulcine[/name]
[name]Eveline[/name]
[name]Fantine[/name]
[name]Gwendoline[/name]
[name]Honorine[/name]
[name]Isaline[/name]
[name]Jessamine[/name]
[name]Josceline[/name]
[name]Justine[/name]
[name]Leonine[/name]
[name]Lucine[/name]
[name]Marceline[/name]
[name]Maxine[/name]
[name]Melusine[/name]
[name]Nadine[/name]
[name]Ondine[/name]
[name]Opaline[/name]
[name]Pomeline[/name]
[name]Sandrine[/name]
[name]Seraphine[/name]
[name]Severine[/name]
[name]Sistine[/name]
[name]Victorine[/name]
[name]Wendeline[/name]
[name]Yveline[/name]
[name]Zeline[/name]
[name]Zephyrine[/name]
[name]Zoeline[/name]
[name]Charmaine[/name]
Regine
[name]Eline[/name]
[name]Yvaine[/name]
[name]Sabine[/name]
[name]Nerine[/name]
[name]Delphine[/name] is one of my favorite names, how did I not think of it! lol
[name]Aline[/name], [name]Sandrine[/name], [name]Karine[/name] are others.
[name]Adaline[/name]
[name]Coraline[/name]
[name]Emmaline[/name]
[name]Rosaline[/name]
[name]Abileen[/name]
[name]Eglantine[/name]
Ombeline
Godeleine
Ambrosine
Jacquemine
[name]Lurline[/name]
Clarentine
Alverdine (19c. feminization of Alfred – sounds like Everdeen in my head)
Voltairine
Tourmaline
Vespertine (or Vespérine – found in French-speaking Canada, according to a list introduced here)
Nesrine/Nesreen, Nasreen
Symphorine
Maeveen (lit. ‘little [name]Maeve[/name],’ from Irish Meidhbhín/Méibhín)
Mahassine/Mahasin
Mavourneen (bit on the fusty side, but! there is a modern German name, Mavie, pron. /mah-VEE/ or /MAH-vee/ – popularized by the actress Mavie Hörbiger & supposedly lifted from French ma vie ‘my life’ – which would make for a cute nickname, I think)
Magdalene
Ludivine
Ellevine (18c. Norwegian name, says NordicNames)
Celandine
Celestine
Ophelime (feels like another -ine name, to me anyway)
Also, Mazarine sounds like the Persian girls’ name Mahzarin (‘golden moon’ – cf. Mahine, Zareen). 
My favorite rare ones are:
[name]Honorine[/name]
[name]Marine[/name]
[name]Aveline[/name]
[name]Adaline[/name] / [name]Caroline[/name] / [name]Coraline[/name] / [name]Delphine[/name] / [name]Emmeline[/name] / [name]Honorine[/name] / [name]Leontine[/name] / [name]Madeline[/name] / [name]Rosaline[/name] / [name]Severine[/name]
It seems that you could add ‘ine’ to almost any name/beginning of the name. Might be a good way to spruce up old, tired names?
[name]Emaline[/name] ([name]Emma[/name] + ine)
[name]Emiline[/name] ([name]Emily[/name] + ine)
Luciline ([name]Lucy[/name] +ine)
Katiline ([name]Kate[/name] +ine)
Meadoline ([name]Meadow[/name] + ine)
These are by no means good examples but it’s quite fun coming up with fresh names. That way, you get a name that sounds familiar without being common.
Thank you all so much! I forgot about loving [name]Pomeline[/name] nn [name]Pom[/name] (though of course my husband hates it) and I can’t believe how many others you all came up with!