Question

What word in the preamble of the constitution indicate that the farmers wanted the constitution to last forever?

Answer 1

Posterity

The word is used in the Constitution to mean that it was also written for future generation. The founding fathers were visionaries that envisaged a document that would create a great republic and hoped that years later people will appreciate it

Answer 2

In the preamble of the constitution the word "posterity" is used to signify that this document will last for generations to come. By using this term, the Framers wanted to give a sense of perpetuity to the constitution as milestone in the configuration of the United States of America.