I got it from a random fact I knew. “Helicopter” can be split into two base parts but not how most people would think. It’s not Heli-copter, it’s Helico-pter or “spiral wing”. So I saw “pter” thought wings and butterflies were the only match
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AnonymousOP8w
WOW I was like this one is the only one that makes no sense so I chose it and got it right wow.
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Anonymous#18w
lepidoptera means ‘scaly wings’ in greek, and phobos is greek for fear
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AnonymousOP8w
Lepidoptera is also the scientific name for the order of insects that includes moths and butterflies, so you can figure it out with entomology, etymology, or both!