Webster's Revised Unabridged Dictionary · 1913

Placet

Placet , noun

[Latin placet it pleases.]

1.
A vote of assent, as of the governing body of a university, of an ecclesiastical council, etc.
2.
The assent of the civil power to the promulgation of an ecclesiastical ordinance. — Shipley
The king... annulled the royal placet. — J. P. Peters