peculium

Etymology
Borrowed from. See.

Noun

 * 1)  The savings of a son or a slave, with the father's or master's consent; a little property or stock of one's own.
 * 2) A special fund for private and personal uses.

Etymology
From, via an unattested adjective *pecūlis "belonging to one's livestock/property, own".

Noun

 * 1) private property (originally in the form of cattle, but later in the form of savings)

Usage notes
Often used in Ancient Rome to refer to the payment a teaching slave would occasionally collect from his students.