Definition of over-indulgency in US English:

over-indulgency

noun

rare
  • Excessive indulgence; an act of overindulgence.

Origin

Mid 17th century; earliest use found in John Donne (1572–1631), poet and Church of England clergyman. From over- + indulgency. Compare later overindulgence.

Pronunciation

over-indulgency

/ˌəʊv(ə)rɪnˈdʌl(d)ʒ(ə)nsi/