① Written as Adept.
② Within magecraft-related organizations “adept” refers to an expert or master level individual, or to an individual who has unraveled some of the deepest, most secret techniques of magecraft.
③ “Adept” is thought to be something like a title that is conferred upon such individuals.
④ In some fantasy stories, the title “Adept” is held by Buddhist monks in a similar fashion.

Colorful MOON Tsukihime: Tsukihime Glossary