ELI5: Explain Like I'm 5

-ington

-ington is a suffix, which means it is added to the end of words. It is usually used to form the names of places and towns, like in Washington, meaning "the town of Washington" and in Edington, meaning "the town of Ed". It is also sometimes used to form words related to people, like in Harrington, meaning "the family of Harrington".