from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To treat or combine with a halogen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To treat with, or react with, a halogen or a hydrohalic acid.
from The Century Dictionary and Cyclopedia
- To introduce a halogen atom into (a compound); especially, to substitute a halogen for hydrogen in an organic compound.
Sorry, no etymologies found.
For that matter, it would have been too late even when the discovery was made and action taken, if the industry had used primarily bromine, rather than chlorine, to halogenate fluorocarbon compounds for market purposes.