Meaning of Quinisext in English:

Quinisext

Pronunciation /ˈkwɪnɪsɛkst/

adjective

(also Quinisextum)
historical Christian Church
  • Designating an ecumenical council convoked by the emperor Justinian II at Constantinople in 692, also known as the Council in Trullo.

Origin

Mid 17th century; earliest use found in John Cosin (1595–1672), bishop of Durham. From post-classical Latin quinisexta from classical Latin quīnī five each, five + sextus sixth, translating Byzantine Greek or medieval Greek πενθέκτη (short for πενθέκτη σύνοδος Quinisext Council).