the capital of the state of Delaware
"Residents traveled to Dover, the capital of Delaware, to attend the new governor's inauguration."
A town and major port in Kent, England, the closest point to France.
"We took a ferry from Dover to cross the English Channel to France."
The word "Dover" comes from Old English, which borrowed it from Latin and ultimately traces back to a Proto-Celtic root meaning "water." This ancient term for water originated from an Indo-European word describing something dark or deep.