分类 » 所有语言 » 中古荷兰语 » 词元 » 动词 » 依屈折分类的动词 » 强变化动词 » 6类强变化动词
The Proto-Indo-European origin of this class is not securely known. It contains verbs with the stem vowel -a-, except those where it is followed by a sonorant and another consonant (this combination was considered a diphthong in PIE and therefore belonged to class 7).