Superlative form of wise; having the most wisdom, good judgment, and understanding; making the best decisions based on experience and knowledge.
From Old English 'wis,' related to German 'weise' and ultimately from Proto-Indo-European 'wid-' (to see). The superlative '-est' is also ancient, from Proto-Germanic.
Interestingly, many cultures consider the wisest people to be those who ask the most questions and admit what they don't know—the ancient Greek philosopher Socrates said wisdom is knowing that you know nothing!
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