Definition of sub-chantry in US English:

sub-chantry

(also subchantry)

noun

Scottish
Christian Church
rare, historical
  • The benefice or office of a sub-chanter. In later use also: the official residence of a sub-chanter.

Origin

Late 15th century; earliest use found in Acts of Lords of Council in Civil Causes. Probably from sub- + chantry, after sub-chanter.