Present participle of 'ditty' when used as a verb, meaning to compose, sing, or perform ditties (short, simple songs).
From 'ditty' (Old French 'dité,' a short composition) with the present participle suffix '-ing.' Less common than the noun form of ditty.
Dittying is almost never used in practice—we say 'singing a ditty' rather than 'dittying'—showing how some grammatical possibilities exist in English but never actually get spoken because they sound awkward!
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