>>6168314By contrast, compare the shape of that regalia googl ngram time trend to the word "escutcheon" (medieval heraldry shield) this pic related trend, you can see it is in decline hence this is an antiquated medieval term. googl ngram doesn't encompass fiction and literature before 1800 there are data issues early on and for genuinely medieval terms there would be a proliferation and a morass of variant spellings ranging from Old to Middle English or tudor Shakespeare or even Norman French etc (lol from reading Edmund Spenser The Faerie Queene I discovered that in medieval and Shakespearean ages you can basically spell words however you want lol)
