regaining is a form of:

Insistence



noun
1.
(A demanding without let up, the taking of a firm stand) ការទទូច, ការតវ៉ា, ពាក្យរឺលិខិតតវ៉ា
Example: Her insistence on doing the work herself, forgive my insistence on this matter.
ENGLISH MEANING
noun
1.
The quality of insisting, or being urgent or pressing; the act of dwelling upon as of special importance; persistence; urgency.