*s'installer*, to install one's self, take up one's abode.
*s'insurger*, to revolt.
*s'intéresser*, to take an interest in.
*intérieurement*, inwardly.
*interprète*, m., interpreter.
*s'interrompre*, to break off, interrupt one's self.
*intime*, intimate.
*intriguer*, to puzzle, perplex.
*inutile*, useless, unavailing.
*invoquer*, to call upon.