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Stage 1 of 3
quadrare
Latin · ancient
"to make square"
meaning "to make square"
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Stage 2 of 3
squadrone
Italian · medieval
"a square military formation"
named a square-formed body of troops
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Stage 3 of 3
squadron
English · 1500s-1600s
"a unit of military ships, aircraft, or troops"
adopted through Italian and French military terminology
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