Rigor: A word with two different but related meanings in medicine: 1. A chill, usually with shivering, as at the onset of high fever and chills. 2. Rigidity, as in rigor mortis, the rigidity of a body after death. The alternate spelling rigour is chiefly British. From the French, from the Latin rigor, meaning stiffness, from rigere, to be stiff.
-ine is a suffix used in chemistry to denote two kinds of substance. The first is a chemically basic and alkaloidal substance.
1 A derivational suffix (such as the addition of-ly to an adjective to form an adverb) indicates what type of word it is. 2  An inflectional suffix (such as the addition of-s to a noun to form a plural) tells something about the word's grammatical behavior. suffix is a letter or group of letters added to the end of a word or root (i.e., a base form), serving to form a new word or functioning as an inflectional ending. Adjective: suffixal. There are two primary types of suffixes in English: