This is the 7962nd most frequent Dutch word.
end
The Dutch word "end" means "distance" or "stretch" in English.
Here, 'einde' is the noun referring to the conclusion of a story.
Het einde van het verhaal was verrassend.
The end of the story was surprising.
In this case, 'eindelijk' uses a derived form of 'einde' to express a sense of conclusion or completion with emphasis.
We hebben het project eindelijk afgerond.
We have finally completed the project.
Here, 'einde' describes a specific physical endpoint at the road's termination.