people think the etymology of "helicopter" is "heli" and "copter", but it's actually "helico" and "pter" meaning "spinning bird"


@trickster next thing you’re going to tell me is pter is a cognate for feather and I just won’t have it

@trickster Grimm’s Law fully explains why the two look so different, p -> f, t -> th

@jasonscheirer Note pen in there. From feather, (also a female goose), and the same *pet- root.

So your spinning pen and helicopter are linguistically virtually identical.


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