noun
A reversion to an earlier stage of development.
(derogatory) A person considered to be primitive, uncivilized and mentally deficient.
An organism that has characteristics of a more primitive form.
An atavism.
A person similar to an ancestor, or something new similar to what already existed.
(slang, often attributive) A person or thing that evokes memories.
(US, accounting) A practice to avoid untaxed nowhere income by instead taxing such income in the originating state for a given transaction.