Possessive suffixes are appended to noun-like words to relate them to a person in the grammatical sense, i.e. 1st person (I, we), 2nd person (you), or 3rd person (he, she, it, they). At the simplest, the relationship is possession, e.g. autoni with the 1st person suffix ni means “my car”. However, most uses of possessive suffixes are more abstract and often idiomatic.
Possessive suffixes could be classified as personal suffixes of noun-like words. In most descriptions, they are treated as part of word inflection, causing the number of inflected forms of a noun to be about six times as big as it would otherwise be.
Possessive suffixes appear after case suffixes but before word-like suffixes like kin, pa, and han. Example: autossanikin (in my car, too).