pixelfed/resources/lang/el/notification.php

<?php

return [

  'likedPhoto' => 'έδειξε προτίμηση στη φωτογραφία σου.', //'preferred your photo'
  //'likedPhoto' => 'αγάπησε τη φωτογραφία σου.', //'loved your photo' (this is too much, we don't use 'love' like that)
  //'likedPhoto' => 'έκανε like στη φωτογραφία σου.', //'did a like on your photo' (this sounds cheesy)

  //In greek "like" is only passive (i.e. you can say "Your photo was liked by user" but not "user liked your photo").
  // So we either can use "loved", use the english word ("performed a 'like' on your photo"), or (the one I chose) say
  // "user preferred your photo"

];