co-party
English
Noun
co-
party
(
plural
co-parties
)
A
party
who is on the same side as
another
party.
Further reading
co-party, coparty
at the
Google Books Ngram Viewer
.
“
co-party
”, in
Merriam-Webster Online Dictionary
, Springfield, Mass.:
Merriam-Webster
, 1996–present.