An archaic or variant form of 'embassy,' referring to the official residence and office of an ambassador, or the ambassador and their staff.
An older English spelling variant of 'embassy,' derived from Old French 'ambassade.' Over time, English standardized the spelling to 'embassy,' making 'ambassy' an obsolete form rarely seen except in historical texts.
This is basically just an old spelling of 'embassy'—it shows how English spelling wasn't standardized until relatively recently, and in old books you'll see lots of variant spellings of the same word depending on who was writing and when.
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