www.alphadictionary.com

Obligingness, civility, helpfulness. ''Everybody liked him because of his prevenancy.''

Good word.
Not one used much in daily parlance, but maybe it ought
to be.

Another great one in the Grogie series. An excellent one for people to remember in this season, especially. Patience and civility tend to be somewhat lacking at times.

I wonder if it has other forms. We have provenance, but not provenancy, so perhaps there is no prevanence?