denary

Each one was worth a denary, which was a coin worth about a shilling, or a quarter of a dollar.

The numeration was in the denary scale, so that it did not agree absolutely with the notation.

But the system has never spread; and the word “dozen” itself is based on the denary scale.

The words eleven and twelve have been supposed to suggest etymologically a denary basis (see, however, Numeral).