I defy you to list all English words ending by -EFY. The candidates must exist in at least one reliable dictionary.

(In reply to my list by Daniel)

To add to the list of words provided by Daniel...

The following defined words can be found in one or more of the
following dictionaries -- Collins, Merriam-Webster, Random-House. A few of the words listed are noted as obsolete, yet still appear in at least one of the above contemporary dictionaries.
 
arefy     - (v.) to dry
calefy    - (v.) to make or become warm
labefy    - (v.) to weaken
madefy    - (v.) to moisten or make wet
rubefy    - (v.) to make red (esp., the skin)
obstupefy - (v.) to stupefy
patefy    - (v.) to make open or manifest
pinguefy  - (v.) to make or become greasy or fat
predefy   - (v.) to resist beforehand
tabefy    - (v.) to emaciate or become emaciated
torpefy   - (v.) to make or become torpid (sluggish, lethargic)
Yankeefy  - (v.) to make or become a Yankee

In addition to the above listed words, the following appears in the official Collins Scrabble Word list, and though not found in the online version, is identified as being in the unabridged Collins English dictionary:

humefy

Posted by Dej Mar on 2016-05-23 00:31:38