Ratification is a term that means "formal approval". If someone were to ratify a document or idea, they would be approving it. An example of this is the ratification of the Articles of Confederation by congress.
Suffrage is a term that means "voting rights". African American or Women Suffrage tells that these people have voting rights. If someone were not to have suffrage, it means they don't have the right to vote.
The Articles of Confederation were the original drafts of the US Constitution. They were ratified in 1781 and used until 1789 when the US Constitution was written. The reasons they were replaced were that congress couldn't tax, couldn't fund a military, and the states couldn't trade with one another.