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Rule: A Combining Form Links Root to Root

This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.

State

Use the combining form to link one word root to another, even when the second root begins with a vowel.

Show

Gastr slash o plus enter slash o plus logy gives gastroenterology.

Watch for

The vowel-suffix rule does not reach this position. Different join, different rule.