Where does “hippopotomonstrosesquipedalian” come from?

hippopotomonstrosesquipedalian (English) comes from English hippopotamus, from Latin hippopotamus, from Ancient Greek ἱπποπόταμος, from Ancient Greek ἵππος, from Proto-Hellenic íkkʷos, from Proto-Indo-European h₁éḱwos, from Proto-Indo-European h₁oh₁ḱu- — swift.

hippopotomonstrosesquipedalian (English): Of or pertaining to extremely long words

Definitions

  1. Of or pertaining to extremely long words

Ancestry of “hippopotomonstrosesquipedalian”, step by step

hippopotomonstrosesquipedalian traces back through two separate lines of ancestry.

via English hippopotamus

StepLanguageWordMeaning
1EnglishhippopotamusA large, semi-aquatic, herbivorous African...
2Latinhippopotamusa hippopotamus
3Ancient Greekἱπποπόταμοςhippopotamus
4Ancient Greekἵπποςa horse, a mare; cavalry, horsemen
5Proto-Hellenicíkkʷoshorse
6Proto-Indo-Europeanh₁éḱwosstallion, horse
7Proto-Indo-Europeanh₁oh₁ḱu-swift

via Latin mōnstrum

StepLanguageWordMeaning
1Latinmōnstruma divine omen indicating misfortune, an evil omen, portent
2Proto-Italicmonestrom

Words derived from “hippopotomonstrosesquipedalian

Every word from Proto-Indo-European h₁oh₁ḱu-Every word from Proto-Indo-European h₁éḱwosEvery word from Proto-Hellenic íkkʷos