| 单词 | nil-grade | 
| 释义 | > as lemmasnil-grade   nil-grade  n. Linguistics the most reduced form of weak ablaut grade, in which the vowel disappears; = zero grade n. at zero n. and adj. Compounds 2. ΘΚΠ the mind > language > linguistics > study of speech sound > speech sound > vowel > 			[noun]		 > ablaut > set of > position occupied in > specific low-grade1895 Schwundstufe1897 nil-grade1922 1922–3    Mod. Philol. 20 197  				The nil-grade of the root vowel is represented by OE -tyllan (in fortyllan ‘to seduce’). 1935    Mod. Lang. Notes 50 523  				Pre-English uncontracted Lāamkô (with nil-grade of the k-suffix). 1972    Language 48 9  				The difficulty disappears if we start from a root kwerp, whose nil-grade developed into Aryan kr̥p- and Goidelic kri. < as lemmas  | 
	
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