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• v  arrange according to a system or reduce to a system

• His brother Lionel Walter Rothschild Lord Rothschild collects and classifies birds and butterflies, is a much respected zoological systematise Lord Rothschild last week .
• His brother Lionel Walter Rothschild Lord Rothschild collects and classifies birds and butterflies, is a much respected zoological systematise Lord Rothschild last week .

• systematize
• systemize
• systemise