quadrans

Etymology
From. .

Noun

 * 1) A bronze coin of the Roman republic worth one quarter of an as.

Etymology
From.

Noun

 * 1) A fourth part of something, quarter, farthing.
 * 2) The fourth part of an as, quarter of an as, three unciae.
 * 3) A quarter-digit.
 * 4)  The fourth part of a sextārius, quarter of a sextārius.
 * 5)  A quarter of a Roman pound.