sexcentenary

adjective
sex·​cen·​te·​nary | \ ¦sekˌsen‧¦tenərē, (ˈ)sek¦sentᵊnˌerē\

Definition of sexcentenary

 (Entry 1 of 2)

: relating to the number 600 or a 600th anniversary

sexcentenary

noun
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Definition of sexcentenary (Entry 2 of 2)

: a 600th anniversary or its celebration

History and Etymology for sexcentenary

Adjective

Latin sescenteni, sexcenteni six hundred each (from sex six + centeni one hundred each, from centum hundred) + English -ary

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