Prefixes and Word Structure: TEAS Practice Question with Answer & Explanation

Understanding Latin Prefixes for the TEAS

On the ATI TEAS 7 English and Language Usage section, you are expected to identify the meanings of common Greek and Latin roots, prefixes, and suffixes. This skill is critical for nursing students because medical terminology is almost entirely derived from these ancient languages.

The Correct Answer: D

The prefix circum- originates from the Latin word circum, meaning "around" or "about."

• In the word circumvent, the root vent means "to go" or "to come." Therefore, to circumvent something literally means to "go around" it (often used figuratively to mean avoiding a problem or rule).
• Other common examples include circumference (the distance around a circle) and circumstances (the conditions that stand around an event).

Why the Other Options Are Incorrect

• A) Across or over: This is the definition of the prefix trans-. For example, transparent (appearing across) or transport (carry across).
• B) Under or below: This refers to the prefix sub- or hypo-. For example, subcutaneous (below the skin) or hypodermic.
• C) To walk or move: This actually refers to a root rather than a prefix. The root amb- or ambul- means to walk (as in ambulatory).

TEAS Concept: Word Structure

Breaking down complex words into their component parts (prefix + root + suffix) is one of the most effective strategies for the Vocabulary section of the TEAS. If you encounter a word you don't recognize on the exam, look for these familiar building blocks. For a nursing applicant, knowing "circum-" helps you understand terms like circumduction (circular movement of a limb), which is vital for physical assessments and anatomy.

Memory Tip

Think of a circus. A traditional circus takes place in a round ring. The word "circus" and the prefix "circum-" both share the same Latin origin meaning "circle" or "around."