Here is a worksheet on the Latin word roots intra and intro. They mean within, inward, inside, and into. You’ll find these roots at the base of words used in the medical profession like intradermal, intramuscular, and intravenous, but also in higher frequency English words like intramural and introduce–all included on this worksheet.
These roots should not be confused with inter which means between and among; if you seek a word root worksheet on inter, you can find that here.
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