executor
noun
[ ɪɡˈzɛkjʊtə ]
• a person or institution appointed by a testator to carry out the terms of their will.
• "Hugh appointed him an executor of his will"
• a person who produces something or puts something into effect.
• "the makers and executors of policy"
Origin:
Middle English: via Anglo-Norman French from Latin execut- ‘carried out’, from exsequi (see execute).