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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

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