Third person singular present tense of 'hasten': he/she/it moves quickly or causes something to happen faster.
From 'hasten' + suffix '-s' for third person singular present. The '-s' marker for third person singular is a remnant of Old English grammatical inflections.
Modern English has minimal verb conjugation compared to languages like Spanish or French—we only add '-s' for third person singular in present tense, which is why English verbs are considered 'easy' to learn compared to Romance languages.
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