Where does “pseudocotyledon” come from?

pseudocotyledon (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;...

Ancestry of “pseudocotyledon”, step by step

pseudocotyledon 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 cotyledon

StepLanguageWordMeaning
1EnglishcotyledonEach of the patches of vili on the foetal chorion...
2Latincotyledon
3Ancient Greekκοτυληδώνany cup shaped hollow or cavity; hollow of a cup;...
4Ancient Greekκοτύληsmall vessel, cup; socket of a joint; liquid...
Every word from Proto-Indo-European -osEvery word from Ancient Greek -ήςEvery word from English pseudo-