Bound by signed agreement: the signatory parties to a contract.
n. pl. sig·na·to·ries
1. One who has signed a contract or other legal document as a party.
2. A country that is a party to a treaty.
[Latin signātōrius, from signātus, past participle of signāre, to mark, from signum, sign; see SIGN.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.