How to find the previous sibling of parent

Question

Okay, I know this should be simple. I have a definition list (<dl>) that contains data definitions and data labels. I have an input in one of the data definitions so a user can define the definition.

I am then trying to get the name of the label for that definition. In the demo the alert should prompt with "cycle_3".

var myErrors = $('.myTest').prev('dt').text();
console.log(myErrors);

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<dl>
  <dt> cycle_1:</dt>
  <dd> test </dd>
  <dt> cycle_2: </dt>
  <dd> test </dd>
  <dt> cycle_3: </dt>
  <dd>
    <input class="myTest" value="test" />
  </dd>
</dl>

Solution 1

$('.myTest').parent().prev('dt').text();

Solution 2

use .closest()

$('.myTest').closest('dd').prev('dt').text();