When hippos fly
Most all of us have heard that the word hippopotamus means river horse, & it does. What most of us don’t know is that -potamus (the part that means river) comes from a word meaning rushing water which came from a root word meaning to rush or fly.
From the meaning to rush or fly feather was born, as was pinnate (feather-shaped), pinion (wing joint), & pterodactyl (wing-finger). Stretch your imagination a bit further (imagine someone swaggering with a fancy feather on his/her hat), & the word panache makes sense. Imagine the pointy part of a feather pen, & you see why pin & pen share a root This meaning also gave us pinnacle (pointed peak),& pinniped (fin or pin-footed sea mammal).
Some of this root’s to fly-related progeny include ornithopter & helicopter.
But along with meaning to fly, this root meant to rush, which morphed into words meaning to rush in, to grasp, to desire. From these we get the words: petition, appetite, centripetal, compete, perpetual, impetus & impetuous.
Because what goes up must come down, & this root is all about flying, it also gave us the words symptom, & ptomaine.
Please be kind enough to use the comments section to let me know what was most surprising in all this.
My thanks go out to this week’s sources, Etymonline.com, Merriam-Webster.com, Wordnik, Collins Dictionary, & the OED.