-ine /(?; 104)/

-ine
  1. A suffix, indicating that those substances of whose names it is a part are basic, in their nature, i.e. contain a basic nitrogen group. (Chem.)
  2. A suffix, formerly used to indicate hydrocarbons of the second degree of unsaturation; i. e., members of the acetyline series; as, hexine, heptine, etc., but now superseded by the ending -yne, as in propyne. (Organ. Chem.)