A New Paradigm

We start by considering the definition of this term:

Par a digm n. A list of all the inflectional forms of a word taken as illustrative example of the conjugation or declension to which it belongs. An example or model. [Late Latein paradigma, from Greek paradeigma, modern paradeiknunai, to compare, exhibit.]

What is the world does this have to do with computer programming languages?