secreta se·cre·ta (sĭ-krē'tə)
Substances secreted by a cell, a tissue, or an organ; the products of secretion.
The person holding this office is styled "a secretis" by the Romans; for secrets they are accustomed to call "secreta."
secreta hc murmura vulgi—Those secret whisperings 10 of the populace.
Rimans secreta omnium; that is, what were intentionally kept secret; with xii.
In December of that year the windows of the Bibliotheca secreta were begun; but during 1478 and 1479 nothing was done.
In 1477 the furniture for the next room, the Bibliotheca secreta or Inner Library, was begun.
It implies at least the further idea of a 'secreta facultas' in the original elements.