|Origin:||primaevus, from primus ( PRIME1) + aevum 'age'|
pri‧me‧val also primaeval British English
belonging to the earliest time in the existence of the universe or the Earth:
Primeval clouds of gas formed themselves into stars.
primeval feelings are very strong and seem to come from a part of people's character that is ancient and animal-like:
the primeval urge to reproduce