[1] : The Collaborative International Dictionary of English v.0.48

obsidional \obsid"ional\, a. l. obsidionalis, from obsidio a
   siege, obsidere to besiege: cf. f. obsidional. see obsess.
   of or pertaining to a siege.
   1913 webster

   obsidional crown rom. antiq., a crown bestowed upon a
      general who raised the siege of a beleaguered place, or
      upon one who held out against a siege.
      1913 webster
see also:
obsess obsidional crown 

Obsidional >> O Words
Obsidional, definition of term: Obsidional
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