CONSTRAINT. In the civil and Scottish law, by this term is understood what,
in the common law, is known by the name of duress.
2. It is a general rule, that when one is compelled into a contract,
there is no effectual consent, though, ostensibly, there is the form of it.
In such case the contract will be declared void.
3. The constraint requisite thus to annul a contract, must be a vis aut
me us qui cadet in constantem virum, such as would shake a man of firmness
and resolution. 3 Ersk. 1, Sec. 16; and 4, 1, Sec. 26; 1 Bell's Conn. B. 3,
part 1, o. 1, s. 1, art. 1, page 295.