Definition of overjoy in US English:

overjoy

noun

rare
  • Excess of joy; extreme joy.

verb

  • with object To fill with extreme joy; to transport with joy or gladness.

Origin

Early 17th century; earliest use found in John Donne (1572–1631), poet and Church of England clergyman. From over- + joy<br>late Middle English (in an earlier sense). From over- + joy.

Pronunciation

overjoy

/ˌəʊvəˈdʒɔɪ/