- breadth
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[breadth 词源字典] - breadth: [16] Breadth was formed in the 16th century by adding the suffix -th (as in length) to the already existing noun brede ‘breadth’. This was an ancient formation, directly derived in prehistoric Germanic times from *braid-, the stem of broad. It came into Old English as brǣdu.
=> broad[breadth etymology, breadth origin, 英语词源] - breadth (n.)
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- 1520s, alteration of brede "breadth," from Old English brædu "breadth, width, extent," from bræd; probably by analogy of long/length.