Definition of supererogative in English:

supererogative

adjective

rare
  • More than is needed or required, superfluous; = "supererogatory".

Origin

Mid 16th century; earliest use found in Richard Taverner (?1505–1575), translator and evangelical reformer. From post-classical Latin supererogativus from supererogat-, past participial stem of supererogare + classical Latin -īvus.

Pronunciation

supererogative

/ˌsuːpərˌɛrəˈrɒɡətɪv//ˌs(j)uːpərˌɛrəˈrɒɡətɪv/