INE
-ine (; 104).
1. (Chem.)
Definition: A suffix, indicating that those substances of whose names it is
a part are basic, and alkaloidal in their nature.
Note: All organic bases, and basic substances (especially nitrogenous
substances), are systematically written with the termination -ine;
as, quinine, morphine, guanidine, etc. All indifferent and neutral
substances, as proteids, glycerides, glucosides, etc., should
commonly be spelled with -in; as, gelatin, amygdalin, etc. This rue
has no application to those numerous commercial or popular names with
the termination -ine; as, gasoline, vaseline, etc.
2. (Organ. Chem.)
Definition: A suffix, used to indicate hydrocarbons of the second degree of
unsaturation; i. e., members of the acetyline series; as, hexine,
heptine, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition