'pyrimidinic' originates from Modern scientific formation, specifically from the noun 'pyrimidine' combined with the adjectival suffix '-ic'.

'pyrimidinic' developed from the chemical name 'pyrimidine' (coined in the 19th century for a class of heterocyclic compounds, seen in forms such as French/German 'pyrimidin'), and the adjective was formed by adding the English suffix '-ic' to create 'pyrimidinic'.

Initially connected to the name of the chemical class 'pyrimidine'; over time the adjectival form came to be used specifically for things relating to or containing pyrimidine residues (for example, pyrimidinic bases or pyrimidinic lesions in biochemistry).