from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An affix consisting of a prefix and a suffix, such as the progressive present marker a- ... -ing in dialectal English I'm a-going or the past participle marker y- ... -t in archaic English yclept.
- transitive v. To add as a circumfix.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An affix containing both a prefixing and a suffixing element existing as a single morphological unit.
- v. Affix a circumfix to (a word).
circum- + -fix (Wiktionary)