Add word before catagory name

I am calling all my catagories into a list but I would lik before the cat name for it to say ‘Simpli’.

So if the Cat name was ‘Cleaning’ it would be ‘SimpliCleaning

I have had a play with the php but haven’t been able to figure out how to add it in.

Heres how it is creating the list and calling the catagories.

 <ul class="sf-menu sf-vertical "> 
  <?php
  $ex_catIdArr = get_categories('exclude=9999999' . get_inc_categories("cat_exclude_") .',1');
    $catIdArr = array();
    foreach($ex_catIdArr as $ex_catIdArrObj)
    {
        $catIdArr[] = $ex_catIdArrObj->term_id;
    }
    $includeCats = implode(',',$catIdArr);
    wp_list_categories('orderby=name&title_li=&include='.$includeCats);
  ?>

   </ul>