As nouns the difference between terms and phratry
is that terms is while phratry is (anthropology|dated) a former kinship division consisting of two or more distinct clans with separate identities but considered to be a single unit.
terms
English
Noun
(head)
Statistics
*
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phratry
English
Noun
(
phratries)
(
wikipedia phratry)
(anthropology, dated) A former kinship division consisting of two or more distinct clans with separate identities but considered to be a single unit.
Derived terms
* subphratry