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.
Used as a suffix, ese means a kind of dialect or specialized language. Doctors can be said to speak medicalese. Lawyers speak legalese. Etc. Ese in spanish means that. Este means this. It must have morphed somehow to mean that one or this one. Que pasa, ese? I've heard street Hispanics referred to as Ese's. Ese hombre means that man. really it kind of means that ese nino is that boy esa Nina is that girl you can't say esa nino, because esa is determing a girl, and nino means boy.