coassidity 

- the fact that one thing together acts or arises from the other.

The coassidity of human ideas .

coassidity by Aargzie September 4, 2022

Classicity 

Referring to how "classic" a noun or verb can be.

I think "Twin Peaks:FWWM" was good, but does not have the classicity as the television series.

Classicity by fje January 4, 2006