Added 9 October 2026 prayerbook noun Categories: LanguageRare Words noun ! Definition from Wiktionary (CC BY-SA). More about prayerbook at Wordnik → Where our words come from → Alternative spelling of prayer book. Related Words: prayerbookssiddurmachzorhymnalpsaltersliturgicliturgypsalterparaliturgicalprayertefillahhymnbook Back to today's word