An archaic or dialectal term, possibly referring to a belly laugh or sudden impact to the stomach area.
From 'belly' and 'flaught' or 'flaught' (possibly from Old English or dialect meaning a throwing or striking motion). This appears to be a regional or obsolete term with uncertain etymology.
This word is so obscure it barely survives in historical texts—it's the kind of lost vocabulary that reminds us languages constantly shed words we no longer need.
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