Act has various technical meanings, legal and other; frequently a document in writing, as when a person executing a legal instrument, declares it to be his act and deed. Or it may be the record of an act or proceeding of a public nature, as an Act of Parliament (q.v.). This use of the word is derived from the Romans, who employed Acta to signify the records of public official transactions.
Act
Chambers's Encyclopaedia, Volume 1: A to Beaufort, p. 41
Source scan(s): p. 0054