Ancient, belonging to the earliest age (8)
I believe the answer is:
primeval
(Other definitions for primeval that I've seen before include "Very old" , "From the earliest times" , "Prehistoric" , "Instinctive" , "having come first in history" .)
I believe the answer is:
primeval
(Other definitions for primeval that I've seen before include "Very old" , "From the earliest times" , "Prehistoric" , "Instinctive" , "having come first in history" .)