One who graces or gives grace; something that adds grace or elegance.
From 'grace' plus '-er' (one who does). The suffix '-er' has Old English roots and creates agent nouns from verbs throughout English.
The '-er' suffix is remarkably productive in English—almost any verb can become 'one who verbs' by adding it: teach→teacher, write→writer, grace→gracer. It's how we naturally create job titles!
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