Definition of plaidoyer in US English:

plaidoyer

noun

Law
  • A pleading, a plea; specifically †an advocate's speech (obsolete).

Origin

Mid 17th century. From French plaidoyer speech of defence in court, use as noun of Middle French plaidoyer, plaidoiier to plead, to argue one's case in court, variant of plaidier.

Pronunciation

plaidoyer

/ˌpleɪdwaˈjeɪ/