In Icelandic there are two different types of modifiers within compounds, inflected and uninflected, and the inflected modifiers appear to be peripheral to the uninflected ones. In this article, it is proposed that this is an effect of compounding being required to combine elements of the same type or size. The inflected modifiers, containing more structure than the uninflected ones, cannot be merged at the same level as uninflected modifiers. This article also explores two other issues of domainhood within the compound. One being the establishment of domains for morphophonological processes, where it is proposed that the boundaries of morphophonological domains are determined by the edge of the extended projection of the root. The second one being that of special meaning, where it is shown that exocentric compounds with inflected modifiers have exclusively non-compositional meaning, whereas exocentric compounds with uninflected modifiers could have either compositional or non-compositional meaning.

中文翻译：

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剥掉洋葱的层数：冰岛化合物的层数、变形和域

在冰岛语中，复合词中有两种不同类型的修饰语，屈折和非屈折，屈折修饰语似乎是非屈折修饰语的外围。在本文中，建议这是组合相同类型或大小的元素所需的复合效果。变形修饰语比未变形修饰语包含更多结构，不能与未变形修饰语在同一级别合并。本文还探讨了大院内的其他两个领域问题。一个是为形态语音过程建立域，其中提出形态语音域的边界由根的扩展投影的边缘确定。第二个是有特殊意义的，