Definition of superannuity in English:

superannuity

noun

rare
  • 1The state or condition of being superannuated.

  • 2Money, or an allowance, sum, or pension, paid to a person on retirement.

Origin

Late 18th century; earliest use found in William Cowper (1731–1800), poet and letter-writer. Alteration of superannuation after annuity.

Pronunciation

superannuity

/ˌsuːpərəˈnjuːɪti//ˌsjuːpərəˈnjuːɪti/