Where does “pseudosphere” come from?

pseudosphere (English) comes from English sphere, from Middle English spere, from Old French sphere, from Latin sphēra, from Ancient Greek σφαῖρα, from Ancient Greek -ειδής, from Ancient Greek -ής, from Proto-Indo-European -ēs — Creates action nouns or result nouns from verbs;...

pseudosphere (English): A surface generated by rotating a tractrix about...

Definitions

  1. A surface generated by rotating a tractrix about...

Ancestry of “pseudosphere”, step by step

pseudosphere traces back through two separate lines of ancestry.

via English sphere

StepLanguageWordMeaning
1EnglishsphereA regular three-dimensional object in which every...
2Middle EnglishspereA spear or lance; The Lance of Longinus; A barb...
3Old Frenchspheresphere shape
4Latinsphēra
5Ancient Greekσφαῖραball, globe, sphere
6Ancient Greek-ειδήςlike, connected to, from the nature of, full of;...
7Ancient Greek-ήςadjective suffix
8Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
9Proto-Indo-European-ess
10Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English pseudo

StepLanguageWordMeaning
1EnglishpseudoAn intellectually pretentious person; a...
2Englishpseudo-False, not genuine, fake
3Ancient Greekψευδήςlying, false, untrue; deceived, beguiled
4Ancient Greekψεύδωto lie, deceive; to lie for one's own benefit,...
Every word from Proto-Indo-European -osEvery word from Ancient Greek -ειδήςEvery word from Ancient Greek σφαῖρα