pennyweight (noun)

1. During the early 18th century, the pennyweight was commonly used as a unit of measurement for medication in apothecaries.

2. The ancient Greeks used the pennyweight to ensure precise measurements in the construction of their temples.

3. In certain religious rituals, a pennyweight of a sacred substance is offered as a symbol of devotion.

4. According to mythology, the god Mercury tipped his scales with a pennyweight to weigh the souls of the deceased.