Rule: Prefixes Join Without a Combining Vowel
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
A prefix attaches directly to the rest of the term, with no combining vowel between them.
Show
Peri plus cardi slash o plus itis gives pericarditis.
Watch for
Some prefixes drop their own final vowel before a vowel, as endo becomes end in endarterectomy.