As nouns the difference between provisor and proviso
is that provisor is a deputy of a Roman Catholic bishop while proviso is a conditional provision to an agreement.
provisor
English
Alternative forms
* provisour (obsolete)
Noun
(
en noun)
A deputy of a Roman Catholic bishop.
The holder of a papal provision.
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proviso
English
Noun
(en-noun)
A conditional provision to an agreement
Related terms
* provide
* provision
* provisional