How English Words Are Made.
This type of word-building, in which new words are produced by combining two or more stems, is one of the three most productive types in Modern English, the other two are conversion and affixation. Compounds, though certainly fewer in quantity than derived or root words, still represent one of the most typical and specific features of English word-structure.
There are at least three aspects of composition that present special interest.
The first is the structural aspect. Compounds are not homogeneous in structure. Traditionally three types are distinguished: neutral, morphological and syntactic.
In neutral compounds the process of compounding is realised without any linking elements, by a mere juxtaposition of two stems, as in blackbird, shop-window, sunflower, bedroom, tallboy, etc. There are three subtypes of neutral compounds depending on the structure of the constituent stems.
The examples above represent the subtype which may be described as simple neutral compounds: they consist of simple affixless stems.
Compounds which have affixes in their structure are called derived or derivational compounds. E. g. absent-mindedness, blue-eyed, golden-haired, broad-shouldered, lady-killer, film-goer, music-lover, honey-moon-