Endogenetic refers to something that originates from within an organism or system. Synonyms to this word include: intrinsic, innate, inherent, internal, native, organic, constitutional and inherent. These words are used to describe the natural and inherent character traits or features that belong to an individual or system. For example, intrinsic motivation is the drive to accomplish something from within oneself, while innate abilities refer to natural abilities that a person has from the moment they are born. The use of these synonyms can help to communicate the same idea but with slightly different connotations or emphasis.