Compound word

Definition and stakes

Portrait of Goold Brown Goold Brown,  The Grammar of English Grammars (1882)

“ A simple word is one that is not compounded, not composed of other words; as, watch, man, house, tower, never, the, less.
A compound word is one that is composed of two or more simple words; as, watchman, watchhouse, watchtower, nevertheless.
Permanent compounds are consolidated; as, bookseller, schoolmaster: others, which may be called temporary compounds, are formed by the hyphen; as, good-natured, negro-merchant.
RULES FOR THE FIGURE OF WORDS.
RULE I.--COMPOUNDS.
Words regularly or analogically united, and commonly known as forming a compound, should never be needlessly broken apart.
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Source: Wikisource

W. F. Webster,  English: Composition and Literature

“ A sentence is a group of words expressing a complete thought. Sentences have been classified as simple, complex, and compound. In reality there are but two classes of sentences,—simple and compound. It is not material to the construction of a sentence whether a modifier be a word, a phrase, or a clause; it still remains an adjective, adverb, or noun modifier, and the method in which the subject and predicate are developed is the same. By means of modifiers, a subject and predicate of but two words may grow to the size of a paragraph, and yet be a group of words expressing one complete thought. ”
Source: Gutenberg

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