I. rə̇ˈspän(t)sərē, rēˈs-, -ri noun
( -es )
Etymology: Middle English, from Late Latin responsorium, from Latin responsus (past participle of respondēre to answer) + -orium -ory — more at respond
: a liturgical response ; especially : an anthem that is sung or said after or during a lection
II. adjective
Etymology: Medieval Latin responsorius, from Latin responsus + -orius -ory
obsolete : relating to or constituting an answer : answering , responsive