inmarriage

/ˈɪnˌmɛrɪdʒ/
noun
  1. Marriage between people from the same group, family, or community.
    • Inmarriage among close relatives can increase the risk of genetic disorders.
    • In some small villages, inmarriage was common because few outsiders settled there.
    • The royal family practiced inmarriage to keep power within the dynasty.
Synonyms
What does "inmarriage" mean? | whatsthatwordmean | whatsthatwordmean