obsidional

adjective

ob·​sid·​i·​o·​nal

əbˈsīdē‧ənəl

1

: of or relating to a siege

2

of a piece of money : issued for use during a siege

obsidional coins

Word History

Etymology

Latin obsidionalis, from obsidion-, obsidio siege (from obsidēre to besiege + -ion-, -io -ion) + -alis -al

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