I. ˈdīəˌdem, -ədəm noun
( -s )
Etymology: Middle English diademe, from Old French, from Latin diadema, from Greek diadēma, from diadein to bind on both sides, bind around, from dia through, across + dein to bind; akin to Albanian dua sheaf, Sanskrit dāman rope — more at dia-
1. : crown ; specifically : an ornamental headband worn (as by Eastern monarchs) as a badge of royalty
the regal diadem — John Milton
2. : an emblem of regal power or dignity : sovereignty , empire
II. transitive verb
( -ed/-ing/-s )
: to adorn with a diadem : crown