obsidional
adjective
ob·sid·i·o·nal
\əbˈsīdē‧ənəl\
Definition of obsidional
1 : of or relating to a siege
2 of a piece of money : issued for use during a siege obsidional coins
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Origin and Etymology of obsidional
Latin obsidionalis, from obsidion-, obsidio siege (from obsidēre to besiege + -ion-, -io -ion) + -alis -al — more at obsess
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