User blog comment:ArtemisDonut/Names Needed for Demons and Muffins!/@comment-4214478-20160203000718

For the "Kind Sorceress" perhaps something that references famous sorceresses? Like Hecate, Circe, Medea, Morgan Le Fay, Louhi, or Volva? Of course, most of these women are pretty antagonist, so I wouldn't take their name and run- rather turn in into a reference of sorts.

Alternatively, you could draw parallels between the abusive mother and kind sorceress with their names, like say, Lilith and Eve, respectively. Or Belladonna (an extremely poisonous plant) and Blossom (or some other cool, non-threatening plant term). That could definitely be interesting.