IPA: //ˈɒskjʊləˌtɔːri//
KK: /ˈɑskjəˌleɪtəri/
A religious tablet that is kissed during a ceremony, often representing Christ or the Virgin Mary, and is shared among participants in a mass.
During the Mass, the priest held the osculatory for the congregation to kiss as a sign of peace.
Osculatory is formed from "osculum" (meaning little mouth or kiss) and the suffix "-ory" (meaning relating to or characterized by). The word refers to something that is related to or characterized by kissing.
Think of 'osculum' meaning a little kiss, and remember that 'osculatory' relates to things involving kissing.