IPA: /lɛkˈʃənəri/
KK: /ˈlɛkʃənˌɛri/
A book that contains a collection of scripture readings for use in church services throughout the year.
The pastor referred to the lectionary to find the readings for today's service.
Lectionary → It is formed from "lectio" (from Latin, meaning reading) and "-ary" (meaning pertaining to or connected with). A lectionary is a book or list of readings, particularly from the Bible, used in Christian worship.
Think of 'lectio' meaning 'reading' — a lectionary is a book that contains readings for worship.