D defs.my
Entry 1 sense Webster, 1913

Porphyrogenitism

· Por·phy·ro·gen·i·tism · IPA
01 n. The principle of succession in royal families, especially among the Eastern Roman emperors, by which a younger son, if born after the acces…
  1. 1.
    The principle of succession in royal families, especially among the Eastern Roman emperors, by which a younger son, if born after the accession of his father to the throne, was preferred to an elder son who was not so born.