-ine is a Latin suffix used to denote a similarities or equivalence to something else. Examples include bovine (relating to cows) and marine (relating to the sea). In chemistry -ine is a suffix used in chemistry to denote two kinds of substance. The first is a chemically basic and alkaloidal substance. Examples include quinine, morphine and guanidine. The second usage is to denote a hydrocarbon of the second degree of unsaturation. Examples include hexine and heptine. Many commercial and popular… (More on -ine)