词汇 | ablaut |
词根词缀 | 词源: vowel gradation, 1849, from Ger. Ablaut, lit. "off-sound," coined by J.P. Zweigel in 1568 from ab "off" + Laut "sound, tone," from O.H.G. hlut (see listen). Popularized by Jacob Grimm. |
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