Odd form of noun ϭⲣⲱⲱϩ in relation to verb ϭⲣⲱϩ

[m-linssen]

Describe the bug
Observe the CDO entries:
https://coptic-dictionary.org/entry.cgi?tla=C7883 - verb, ϭⲣⲱϩ
https://coptic-dictionary.org/entry.cgi?tla=C7884 - noun, ϭⲣⲱⲱϩ

Observe Crum 829b:
https://coptot.manuscriptroom.com/crum-coptic-dictionary/?pageID=829b (in unrelated news, the docId is obsolete)

I don't see the noun as having a different from than the verb. With the main entry for the verb being ϭⲣⲱϩ, I would expect the noun to be identical

To Reproduce
See above

Expected behavior
I'd expect the noun to be identical to the verb, unless Crum attests otherwise. Westendorf has as main entry ϭⲣⲱϩ, so does Černý, and so does Cherix - who has this entry not on page 109, but on 110, by the way (V 18.1 2006 rev 2018)

Screenshots
N/A

Desktop (please complete the following information):
N/A

Smartphone (please complete the following information):
N/A

Additional context
Congratulations on the template! Another step towards a mature product (not meant in a condescending way, immature products don't equate to immature people. Just lacking the required experience - the goal never is to create something, to goal always is to make something that can be maintained, that can grow, evolve, preferably with backwards compatibility. I will always be deeply grateful for the CDO!).
If you guys need me to rewrite some of my issues, just hollor. Given the number of outstanding issues on my count I can imagine that you would...