Where does “pseudoextinct” come from?

pseudoextinct (English) comes from English pseudo, from English pseudo-, from Ancient Greek ψευδής, from Ancient Greek -ής, from Proto-Indo-European -ēs, from Proto-Indo-European -ess, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

pseudoextinct (English): extinct, but with members of a daughter species...

Definitions

  1. extinct, but with members of a daughter species...

Ancestry of “pseudoextinct”, step by step

pseudoextinct traces back through two separate lines of ancestry.

via English pseudo

StepLanguageWordMeaning
1EnglishpseudoAn intellectually pretentious person; a...
2Englishpseudo-False, not genuine, fake
3Ancient Greekψευδήςlying, false, untrue; deceived, beguiled
4Ancient Greek-ήςadjective suffix
5Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
6Proto-Indo-European-ess
7Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English extinct

StepLanguageWordMeaning
1EnglishextinctExtinguished, no longer alight; No longer used;...
2Latinextīnctusquenched, extinguished
3LatinextinguoI quench, extinguish, kill
4LatinstinguoI put out, extinguish
5Proto-Italic*stengʷōto push
Every word from Proto-Indo-European -osEvery word from Ancient Greek -ήςEvery word from English pseudo-