- vault + -age (Wiktionary)
“It's not the vaultage that hurts you - it's how much currency.”
“It is entirely of brick, and of confi - derable extent, with great vaultage under it; and ftands by the fide of the high-road beyond Naas.”
Internet Archive: Topographia hibernica : or The topography ofIreland, antient and modern. Giving a complete view of the civil and ecclesiastical state of that kingdom; with its antiquities, natural curiosities, trade, manufactures, extent and population
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