Definition of oyer and terminer in English:

oyer and terminer

Pronunciation /ˌoiər an(d) ˈtərminər/ /ˌɔɪər æn(d) ˈtərmɪnər/

noun

historical
  • A court authorized to hear certain criminal cases.

    ‘a court of oyer and terminer’
    • ‘Following the outbreak of witchcraft accusations in Salem, Phips appointed Stoughton chief justice of the newly formed court of oyer and terminer.’
    • ‘At first in the General Eyre and later under the commissions of oyer and terminer and gaol delivery, they would hear criminal cases.’

Origin

Late Middle English from Anglo-Norman French oyer et terminer ‘hear and determine’.