Type I noun incorporation: lexical compounding [...]. If a language exhibits any NI at all, it will contain basic lexical compounds. Structurally, compounding consists of the derivation of a complex lexical item from a combination of two or more stems. The constituent stems may be of almost any grammatical class (nouns, verbs, adjectives, etc.), as may be the resulting compound. A particular compounding language will not necessarily exhibit all possible combinations.
- Mithun (2004), Pag. 113