Language name of translated node For a teaser view mode I want to display the language of the content. I can get the langcode in twig with: {{ node.langcode.value }} 
But how can I display the language name? In the field display I get only the string with "Language English", but I want only the name without any other thinks like "Language ...". 

One way is to use preprocess node:

function mytheme_preprocess_node(&amp;$variables) {
  $variables['lang_name'] = $variables['node']-&gt;language()-&gt;getName()
}


in the template file:

{{ lang_name }}


Is there a pure twig solution possible?
If you want to use the method language() in Twig

{{ node.language.name }}


you have to add it to the whitelist of the Twig sandbox policy in settings.php:

$settings['twig_sandbox_whitelisted_methods'] = [
  'id',
  'label',
  'bundle',
  'get',
  '__toString',
  'toString',
  'language',
];