NINETY percent of all spelling problems, they say, concern compound words. Should it be selfseeking or self-seeking? Is the word spelled taxpayer, tax-payer, or tax payer? In other words, is the compound closed, hyphenated, or open? Who knows? Not many of us. That’s why we all need a good unabridged dictionary and The Chicago Manual of Style. Here are a couple of compound words problems I’ve found in the manuscripts I’ve edited:
Many words that end with -like are written as one word, such as trancelike. Words using the suffix -like are generally closed unless they end with l or ll (sail-like, ball-like), contain three or more syllables (basilica-like), are compound words (vacuum-bottle-like), or are proper nouns or other words that are difficult to read (Whitman-like). One exception, though, is Christlike. Also beware of words that begin with co-. Such compounds are usually written as one word, as in coworker. In addition, no hyphen is needed when you combine an adverb with another word. An adverb modifies verbs, adjectives, other adverbs, and even complete sentences. The hyphen should be removed from a term such as heavily-guarded (The heavily guarded building . . .).
Here’s a handy guide that will help you with compound words: http://www.chicagomanualofstyle.org/16/images/ch07_tab01.pdf
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