Scrupulum

Scrupulum, meaning a tiny stone (from scrupus sharp stone), indicates a weight of 1/24 of an ounce or, by extension, of other measures. Metaphorically, the stone is thought to be sharp and pricking, like a thorn.

• As a weight or a coin, 1/24 of an uncia, or 1/288 of an as
• As a measure of land, 1/288 of a jugerum
• As a measure of time, 1/24 part of an hour.

The forms scripulum, scriptulum, scriplus and scriptulus can be found, scriptulum being also associated with the lines on a draughtboard.

References

Félix Gaffiot: Dictionnaire Illustré Latin Français, Hachette 1934

See also

• Roman currency