'coagulatory' originates from Latin, specifically the verb 'coagulare', where 'co-' meant 'together' and 'agere' meant 'to drive or bring'.

'coagulatory' changed from Medieval Latin word 'coagulatorius' (derived from 'coagulare') and eventually became the modern English adjective 'coagulatory' through scientific and medical Latin usage.

Initially, it meant 'to drive together, congeal' (referring to bringing particles together), but over time it evolved into its current meaning of 'causing or relating to coagulation (clotting)'.