from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. Present participle of geminate.
Sorry, no etymologies found.
If not, then this could be only a case of geminating the /k/ in final position and releasing it with a short voicleess vowel schwa.
In some cases, this type of harrow can be run over the actual crop rows from several days after planting up until the seedlings are a few centimeters tall to control early geminating weeds or to break up any soil crusting.