triduum /tridˈū-əm or trīˈdū-/ (esp RC)

1. A space of three days
2. A period of prayer or religious celebration lasting three days

• authenticator
• authenticators
• authentic cadence
• authenticities
• authenticity
• author
• authorcraft
• authorcrafts
• authored
• authoress
• authoresses
• authorial
• authoring
• authorings
• authorisable
• authorisation
• authorise
• authorised
• authoriser
• authorisers
• authorises
• authorish
• authorising
• authorism
• authorisms