Enilikian

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Enilikian describes a maturity level for headmates that is fully grown and matured. This may correspond to the human age of adults, specifically older adults, to adult stages in animals, or to a nonhuman equivalent.

Related Terms
This term uses the -ikian suffix.

Palaikian may be considered a subset of enilikian that is associated with eternal or ancient age that may only be experienced by nonhuman species.

Sysdult may fall into this category.

History
The term comes from the greek "enilikos" for adult, and "ilikia" for age.