Dr. Johnson’s Dictionary

PENT. part. pass. of pen. Shut up.
Cut my lace asunder,
That my pent heart may have some scope to beat. Shakesp.
The son of Clarence have I pent up close. Shakespeare.
Pent to linger
But with a grain a day, I would not buy
Their mercy. Shakespeare’s Coriolanus.
Their armour help’d their harm, crush’d in, and bruis’d
Into their substance pent. Milton.
The soul pure fire, like ours, of equal force;
But pent in flesh, must issue by discourse. Dryden.
Pent up in Utica he vainly forms
A poor epitome of Roman greatness.  Addison’s Cato.