To set forth or explain; to expound or make clear through exposition.
From Latin exponere (to set out, explain), from ex- (out) + ponere (to place). This archaic English verb preserved the Latin root meaning 'to lay out for view.'
This 16th-century word 'expone' meant to explain by laying things out—like arranging pieces on a table so someone can see them. We replaced it with 'expound,' but 'expone' preserves that visual metaphor of understanding.
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