Scrupulum

, meaning a tiny stone (from ' sharp stone), indicates a weight of of a Roman ounce (i.e.) 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, of an , or of an as; i.e. 1.14 grams

As a measure of land, of a ; i.e. about

As a measure of time, part of an hour, or minutes.

The forms ', ', ' and ' can be found, being also associated with the lines on a draughtboard.

See also

Roman currency

References

, Hachette 1934