As adverbs the difference between commonly and communally
is that commonly is as a rule; frequently; usually while communally is affecting, by, or on behalf of, a community or group of people.
commonly
English
Adverb
(
en adverb)
as a rule; frequently; usually
(obsolete) in common; familiarly
- (Spenser)
communally
English
Adverb
(
en adverb)
affecting, by, or on behalf of, a community or group of people