Where does “hypoelliptic” come from?

hypoelliptic (English) comes from English elliptic, from Ancient Greek ἐλλειπτικός, from Ancient Greek ἐλλείπω, from Ancient Greek ἐν-, from Ancient Greek ἐν, from Ancient Greek δέρμα, from Ancient Greek γλυφή, from Ancient Greek -ῐ́ᾱ — Creates collective nouns, which refer to groups...

hypoelliptic (English): Related to or involving hypoelliptic operators

Definitions

  1. Related to or involving hypoelliptic operators

Ancestry of “hypoelliptic”, step by step

hypoelliptic traces back through two separate lines of ancestry.

via English elliptic

StepLanguageWordMeaning
1EnglishellipticOf or pertaining to an ellipse; Of or pertaining...
2Ancient Greekἐλλειπτικόςdefective
3Ancient Greekἐλλείπωto fall short, omit; I fall short, leave out; I...
4Ancient Greekἐν-in, within; on
5Ancient Greekἐνin, on, at; among; in, at, or during the time of
6Ancient Greekδέρμαskin, hide
7Ancient Greekγλυφήcarving, carved work; hole cut
8Ancient Greek-ῐ́ᾱ{{l|en|-ia}}; "suffix forming abstract feminine...
9Proto-Indo-European-íh₂
10Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via English hypo

StepLanguageWordMeaning
1EnglishhypoMelancholy; a fit of ‘hypochondria’; a morbid...
2Englishhypo-Below; beneath; under; Deficient; less than...
3Ancient Greekὑπό
4Proto-Indo-Europeanupóunder, below
5Proto-Indo-Europeanh₃ewp-
Every word from Proto-Indo-European -h₂Every word from Ancient Greek -ῐ́ᾱEvery word from Ancient Greek ἐν-