Weaknesses, faults, or ways that someone is not good at something; shortcomings.
From 'fail' (to fall short, not succeed) + '-ing' (forming a noun). The 's' makes it plural. 'Fail' comes from Latin 'fallere' (to deceive or disappoint), appearing in English by 1200s.
Latin 'fallere' (to deceive) perfectly captures why we fail—we fall short of what we promised or expected. The word contains a sense of broken expectations, not just falling down but letting someone down.
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