IPA: /dɪˈhɔːrnər/
KK: /dɪˈhɔrnər/
A tool used to remove the horns from cattle.
The farmer used a dehorner to safely remove the horns from the young bull.
Dehorner → It is formed from "de-" (meaning down or away) and "horn" (from Old English "horn", meaning a hard, pointed projection). The word "dehorner" refers to a tool or person that removes horns, effectively taking them away.
Think of 'taking away' ('de-') a 'horn' — that's what a dehorner does.