Слово "undersign". Англо-русский словарь Мюллера

Примеры использования

1. He scanned it quickly. The undersigned agrees not to divulge the methods or techniques or et cetera, et cetera. "Sure," he said, and Donatti put a pen in his hand. He scratched his name, and Donatti signed below it. A moment later the paper disappeared back into the desk drawer. Well, he thought ironically, I've taken the pledge. He had taken it before. Once it had lasted for two whole days.
   Тот быстро пробежал его глазами: нижеподписавшийся обязуется не разглашать методы, и так далее. Моррисон нацарапал свою фамилию.
   Корпорация "Бросайте курить" Стивен КИНГ, стр. 5