monarchs is a form of:

Crossbones



noun
1.
(វេជ្ជសាស្ត្រ) ឆ្អឹងទទឹង
ENGLISH MEANING
noun
1.
(PLURAL) A representation of two of the leg bones or arm bones of a skeleton, laid crosswise, often surmounted with a skull, and serving as a symbol of death.