Where does “слонопотам” come from?

слонопотам (Russian) comes from Russian гиппопота́м, from French hippopotame, 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.

слонопотам (Russian): Heffalump; clumsy, awkward person

Definitions

  1. Heffalump; clumsy, awkward person

Ancestry of “слонопотам”, step by step

слонопотам traces back through two separate lines of ancestry.

via Russian гиппопота́м

StepLanguageWordMeaning
1Russianгиппопота́мhippo
2Frenchhippopotamehippopotamus
3Latinhippopotamusa hippopotamus
4Ancient Greekἱπποπόταμοςhippopotamus
5Ancient Greekἵπποςa horse, a mare; cavalry, horsemen
6Proto-Hellenicíkkʷoshorse
7Proto-Indo-Europeanh₁éḱwosstallion, horse
8Proto-Indo-Europeanh₁oh₁ḱu-swift

via Russian слон

StepLanguageWordMeaning
1Russianслонelephant; bishop
2Proto-Slavicslonъelephant; offset, cornice; shed, shelter
Every word from Proto-Indo-European h₁oh₁ḱu-Every word from Proto-Indo-European h₁éḱwosEvery word from Proto-Hellenic íkkʷos