to treat someone with great dignity, honor, or royal respect.
From 'be-' combined with 'majesty' (royal dignity or splendor). This creates a verb meaning to invest with majesty or treat majestically.
This word shows how English speakers in the medieval period could turn almost any noun into a verb using 'be-'—you could literally 'be-' something by doing it to something else, though most of these formations never survived into modern English.
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