Strong's Number H8819

Hithpael
The Hithpael primarily expresses a reflexive action of the Qal or Piel stems.
It can be reflexive (“he wore” becomes “he dressed himself”), reciprocal (“they saw” becomes “they looked upon one another”), or simple, where the reflexive sense is understood (“he prayed, he mourned, he became angry”).
This form accounts for 1.4% of the verbs parsed.
Source:
https://studybible.info/strongs/H8819