The Spanish word 'jerarquía' (meaning 'hierarchy') comes from Medieval Latin 'hierarchia', which in turn comes from Ancient Greek 'hierarchia' (ἱεραρχία). The Greek word was formed by combining two elements: 'hieros' (ἱερός) meaning 'sacred or divine' and 'arkhe' (ἀρχή) meaning 'rule or government'. So literally, it meant 'sacred rule' originally.

The word entered Spanish as 'hierarquía' and later evolved to 'jerarquía', following a common Spanish pattern where the initial 'hie-' sound shifted to 'je-'. This same pattern can be seen in other Spanish words of Greek origin.

Some related Spanish words include 'jerarca' (hierarch, leader), and 'jerárquico' (hierarchical). These words share the same Greek roots and maintain the concept of ordered authority or ranking systems.

English speakers might recognize this word's connection to 'hierarchy' and 'hierarchical', which come from the same Greek roots. The English retained spelling closer to the original Greek form with 'hier-', while Spanish adapted the pronunciation and spelling to 'jer-'. Another related English word is 'hieratic', meaning 'relating to priests or sacred matters', which comes from the same Greek root 'hieros' (sacred).