ọká noun /ɔ̄.ká/
Definitions
  1. Gaboon viper
Etymology
From ọ- (“nominalizing prefix”) + ká (“to coil”).
Component words
ọ-nominalizing prefix to coil
Source: Wiktionary · etymology 2, where this word is spelled “ọka”. Reference: en-ọka-yo-noun-alOXtDjA