from The American Heritage® Dictionary of the English Language, 4th Edition
- Variant of com-.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- used with certain words to add a notion similar to those conveyed by with, together, or joint
- used with certain words to intensify their meaning
- attached to certain words to obtain new, informal, subcultural words in which con- conveys a notion of:
from the GNU version of the Collaborative International Dictionary of English
- A prefix, fr. L. cum, signifying with, together, etc. See com-.
From the Latin prefix con-, from cum ("with"). (Wiktionary)
Back-formation from conlang, short for "constructed language". (Wiktionary)