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Stage 1 of 3
dar as-sina'a
Arabic · medieval
"a manufacturing workshop"
literally "house of manufacture", a shipyard or workshop
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Stage 2 of 3
arzanale
Italian · medieval
"a naval dockyard"
adopted for Venice's great naval shipyard
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Stage 3 of 3
arsenal
English · 1500s
"a collection or store of weapons"
broadened to mean any place storing weapons
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