martyrion
(pl. martyria) Shrine or building over the grave or the place of martyrdom of a martyr.

novel (novella)
Τerm meaning ad verbum "new decree" and used since around the 4th century in order to denote the provisions of the emperors as separate from the organized codes. They were written mainly in Greek and used extensively in the Middle Byzantine Era. Since the days of Komnenoi and after, they were replaced by other more specialized terms and they are very rare in the Late Byzantine era

sarcophagus
A large rectangular stone coffin in which a dead person was laid to rest. In some cases sarcophagi were made also of clay, wood or metal.