In obsolete|lang=en terms the difference between viary and vivary
is that viary is (obsolete) of or pertaining to roads; happening on roads while vivary is (obsolete) vivarium.
As an adjective viary
is (obsolete) of or pertaining to roads; happening on roads.
As a noun vivary is
(obsolete) vivarium.
viary
English
Adjective
(
-)
(obsolete) Of or pertaining to roads; happening on roads.
(
Webster 1913)
vivary
English
Noun
(vivaries)
(obsolete) vivarium