'serendipitously-stable' originates from the combination of 'serendipitous' and 'stable'. 'Serendipitous' comes from the word 'serendipity', which was coined by Horace Walpole in 1754, inspired by the Persian fairy tale 'The Three Princes of Serendip', where the princes made discoveries by accident. 'Stable' comes from the Latin word 'stabilis', meaning 'firm or steadfast'.

'Serendipitous' evolved from 'serendipity', which was introduced into English in the 18th century. 'Stable' has been part of the English language since the Middle Ages, derived from Old French 'stable', which in turn came from Latin 'stabilis'.

Initially, 'serendipitous' meant 'making fortunate discoveries by accident', while 'stable' meant 'firm or steadfast'. Together, they describe a state of stability achieved by chance.