Perhaps; maybe; possibly (an old-fashioned or poetic way of saying something might happen).
From Old French 'par chance' (by chance), combining 'par' (by/through) + 'chance' (luck/fortune). It entered Middle English and became a favorite word of Shakespeare and other Renaissance writers.
Shakespeare used 'perchance' constantly—it sounds fancy, but it literally just means 'by chance,' so you could say 'perchance we shall meet again' instead of 'maybe we'll bump into each other.'
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