I’m working on a website using a child-theme of Twenty Fourteen and the “Previous / Next Post” verbiage isn’t appropriate for this website. The word “Post” should be more relevant to the websites purpose; an online store of sorts.
The piece of code that I needed to change was located in the parent theme directory inc/template-tags.php from line 68 through 99. Copying this to the child theme was ineffective. The solution I ended up with was written to the child themes functions.php. I changed “Post” to “Product.” Lastly, I wanted a product listed in a category to show next and previous links within it’s parent category. I found all of what I needed in the WordPress Codex – http://codex.wordpress.org/Function_Reference/previous_post_link
// Change Previous / Next Text
if( ! function_exists(twentyfourteen_post_nav) ) { function twentyfourteen_post_nav() {
echo '<nav class="navigation post-navigation" role="navigation">
<div class="nav-links">';
previous_post_link( '%link', __( '<span class="meta-nav">Previous Product</span>%title', 'twentyfourteen' ), true );
next_post_link( '%link', __( '<span class="meta-nav">Next Product</span>%title', 'twentyfourteen' ), true );
echo '</div><!-- .nav-links -->
</nav><!-- .navigation -->';
}}
Pretty simple.

