pri‧mal /ˈpraɪm
əl/ 
 adjective [only before noun] formal[
Date: 1500-1600; 
Language: Medieval Latin; 
Origin: primalis, from Latin primus;  ⇒ prime1]
 primal feelings or actions seem to belong to a part of people’s character that is ancient and animal-like: 
 a primal fear of the unknown
 a primal fear of the unknown  [TahlilGaran] Dictionary of Contemporary English ▲