Capable of making mistakes or being wrong; not perfect or infallible. Describes humans, systems, or methods that can err or fail.
From Latin 'fallibilis', derived from 'fallere' (to deceive or fail). The root also gives us 'fallacy' and 'false', emphasizing the capacity for error or deception.
Think 'fall-ible' - able to fall or fail! Just like we can physically fall, we can intellectually 'fall' into errors. The '-ible' ending means 'able to' fall into mistakes.
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