词根词缀：plectr-

【来源及含义】Greek plektron > Latin plectrum: thing to strike with; such as, a pick for a lyre, a zither, a guitar, an autoharp, etc.

【同源单词】auscultoplectrum, plectron, plectrum, zither

词根词缀：-trum

【来源及含义】Latin: a suffix; result of, the act of, means of

【同源单词】antrum, auscultoplectrum, electrum, lustrum, monstrum, plectrum