Also, as long as I’m being pedantic– Pierre is not a necromancer. Yes, Larkspur is subtitled ‘A Necromancer’s Romance’ but that’s mostly because if I said necrocræft user no one would understand. (Maybe I could change it to Suitor of Death’s Romance though..).
The suffix -mancy implies divination. Necromancy is telling the future from the dead. In modern terms it usually just means whatever dark wizardry involves corpses and maybe spirits. While Pierre does have some mastery over spirits of death, and the souls of the dead, he does not tell the future with this power. Whether he can.. well I’ll have to think about that.
Being a user of cræft/craft, is closer to what I want to express. In Noctuina a cræft is a magic that you are practicing. What is special about humans is that with their balance of humours, most people can learn a cræft if they so choose. General magic works well with humanity. Other creatures may have their types of magic, but they could not so easily learn another kind.
Also, a cræft is something you must practice and hone. When a magic becomes so ingrained in you that no matter what it cannot be lost the suffix of the cræft changes to -magia. So pyrocræft would be learning and practicing magic related to fire. To have pyromagia would be to always have this magic within you permanently.(Necromagia, from Mora’s kind of necrocræft, is not possible).