actus animi (ak-t<<schwa>>s an-<<schwa>>-mI). [Law Latin] Hist. An act of the mind; an
intention. See ANIMUS.
“Again, consent, which is essential to all contracts, is an actus animi, and is presumed in all
cases where the contract is ex facie regular.” John Trayner, Trayner’s Latin Maxims 21–22 (4th ed.
1894). [Blacks Law 8th]