Definition of piscary in US English:

piscary

noun

in phrase common of piscary
British
historical
  • The right of fishing in another's water.

    • ‘Thus, the King, by virtue of his public trust responsibilities, was without powers to abridge ‘the public common of piscary’.’

Origin

Late 15th century: from medieval Latin piscaria ‘fishing rights’, neuter plural of Latin piscarius ‘relating to fishing’, from piscis ‘fish’.

Pronunciation

piscary

/ˈpɪskəri//ˈpiskərē/