| Answer | Crossword Clue |
|---|---|
| centennial | Of or relating to a hundredth anniversary |
| centenary | relating to a period of a hundred years / a hundredth anniversary |
| bimillenary | Of or relating to a period of two thousand years or a two-thousandth anniversary |
| quadringenary | a four-hundredth anniversary or its celebration |
| quadringenaries | QUADRINGENARY, a four-hundredth anniversary or its celebration |
| quingentenary | pertaining to a five-hundredth anniversary / a five-hundredth anniversary also QUINCENTENARY |
| quincentenary | pertaining to a five-hundredth anniversary / a five-hundredth anniversary also QUINGENTENARY |
