Present participle of grace; the act of adorning, honoring, or blessing something with one's presence.
From 'grace' (verb) plus '-ing' (present participle). The '-ing' suffix, from Old English, transforms verbs into gerunds or participles, and has been productive for over a thousand years.
The '-ing' suffix is magical in English—it lets us use verbs as nouns: 'running,' 'dancing,' 'gracing.' Languages without this feature have to work much harder to express ongoing actions!
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