Meaning of septenniad in English:

septenniad

Pronunciation /sɛpˈtɛnɪad/

noun

rare
  • A period of seven years, especially in a human life.

    Frequently with reference to the (now historical) idea that human life is divided into a series of ages, each lasting seven years. In ancient astrology, a person was thought to experience a climacteric every seventh year.

Origin

Mid 19th century; earliest use found in John Johnson (1777–1848), printer. From classical Latin septennium septennium + -ad.