Present participle of delight; the act of bringing great pleasure or joy to someone; the state of taking great pleasure in something.
From delight (Old French delite, from Latin delectare, to please) plus the present participle suffix -ing, creating the gerund or progressive form.
The -ing suffix transforms verbs into nouns or adjectives, so 'delighting' can work as either a gerund ('delighting in music') or a progressive verb ('she is delighting everyone')—this dual function is one of English's most useful grammatical features.
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