No WP orphans

wp-non-orphaned-titles.php

<?php

function no_orphans( $title ) {
  global $post;
  if( $title == $post->post_title ){
    //Take apart
    $title_words = explode(' ', $title);
    $tile_without_last_word = array_slice($title_words, 0, -1);
    $last_word = array_slice($title_words, -1, 1);

    //Put back together
    $new_title = implode(' ', $tile_without_last_word);
    //add in non-breaking space
    $new_title .= '&nbsp;' . $last_word[0];
    $title = $new_title;
  }
  return $title;
}
add_filter( 'the_title', __NAMESPACE__ . '\\no_orphans', 10, 2 );

Very nice :)

A jQuery equivalent:

$(".title").each(function(){
  var words = $(this).text().trim().split(" ");
  if( words.length > 1 ) {
    var firstWord = words.shift();
    var lastWord = words.pop();
    var formattedText = firstWord + '\xa0' + words.join(" ") + '\xa0' + lastWord;
    $(this).text(formattedText);
  }
});