octingenary /ok-tin-jēˈnə-ri/ or octingentenary /-jen-tēˈnə-ri/

An eight-hundredth anniversary

• hereinto
• hereness
• herenesses
• hereof
• hereon
• Herero
• Hereroes
• Hereros
• heresiarch
• heresiarchs
• heresies
• heresiographer
• heresiographers
• heresiographies
• heresiography
• heresiologies
• heresiologist
• heresiologists
• heresiology
• here's to
• heresy
• heresy-hunt
• heresy-hunter
• heresy-hunters
• heresy-hunts