O is for… Opimachus
The chargol insect of Leviticus begat the ophiomachus (“snake fighter”) of the Septuagint, by way of Aristotle’s account of snake-eating locusts. This in turn begat the opimachus of the Ortus Sanitatis, which merges it with the snake-fighting secretary bird. Did it beget the word “opinicus” as well?