The word 'statutory' has a direct lineage to the concept of formal establishment. Its core, 'statut-', derives from the Latin verb statuere, meaning 'to set up, cause to stand', which itself comes from status ('a standing, position'). This foundational idea of something being firmly set or established evolved into the specific legal sense of a written law enacted by a legislative body, a 'statute'. The suffix '-ory' is then appended, transforming the noun into an adjective that describes anything pertaining to or required by such formally enacted laws. Thus, the literal 'relating to that which is set down' perfectly captures the modern meaning of being defined or mandated by legislation.

Structure: statut (decree) + ory (adjective suffix) - statut: From Latin statutum, meaning 'a decree, regulation'. It is the past participle of statuere ('to set up, establish'). In this word, it functions as the core root conveying the concept of a formally established law. - ory: A suffix of Latin origin (-orius) used to form adjectives meaning 'of, relating to, or characterized by' the action or thing denoted by the root.