Novennial
/nəʊˈvɛn.i.əl/noun
Occurring every nine years.
Did you know?Novennial comes from Latin novem (“nine”), the same root behind words like November, because ancient languages treated numbers as powerful organizing forces for calendars and ritual life.
Etymological Timeline
Proto-Indo-European
PIE
*h₁néwn̥
“The number nine.”
Latin
Latin
novem
“Nine.”
Classical Latin
Latin
novennis
“Of nine years, lasting nine years.”
Late Latin / Medieval Latin
Latin
novennalis
“Nine-yearly; recurring in a nine-year cycle.”
Modern English
English
novennial
“Occurring every nine years.”