Etymology: < coppern.1 + -ensuffix4; Old English had cyperen.
Obsolete. rare.
Made of copper.
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society > occupation and work > materials > derived or manufactured material > metal > base metal > [adjective] > of, like, or relating to copper > made of copper
copperen1527
copper1578
1527 L. Andrewe tr. H. Brunschwig Vertuose Boke Distyllacyon sig. BivvCopperen helmets be to feare, and specyally the brason helmets.
This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2019).