Present participle of 'hasten': the act of moving quickly or making something happen faster.
From 'hasten' + suffix '-ing' (present participle and gerund marker). The '-ing' suffix comes from Old English and Germanic languages, originally indicating action or process.
The '-ing' form is incredibly versatile in English—it can be a verb form ('I am hastening'), a noun ('hastening is important'), or an adjective ('a hastening process')—which is why it's one of the most common suffixes in the language.
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