octocentenary

Octocentenary is a related term of octocentennial.

Octocentennial is often a misspelling of octocentenary.

Octocentennial has no English definition.

As a noun octocentenary is

an eight-hundredth anniversary.

Octocentenary is a related term of octingentenary.

Octingentenary is likely misspelled.

Octingentenary has no English definition.

As a noun octocentenary is

an eight-hundredth anniversary.

As nouns the difference between anniversary and octocentenary

is that anniversary is of a significant event, a day that is an exact number of years (to the day) since the event occurred often preceded by an ordinal number indicating the number of years that have elapsed since the event while octocentenary is an eight-hundredth anniversary.

As nouns the difference between hundredth and octocentenary

is that hundredth is the person or thing in the hundredth position while octocentenary is an eight-hundredth anniversary.

As an adjective hundredth

is the ordinal form of the number one hundred.

As nouns the difference between eight and octocentenary

is that eight is the digit/figure 8 or eight can be an island in a river; an ait while octocentenary is an eight-hundredth anniversary.

As a numeral eight

is (cardinal) a numerical value equal to ; the number occurring after seven and before nine.