Where does “pseudotympanum” come from?

pseudotympanum (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;...

pseudotympanum (English): A translucent, triangular area behind the opercle of some fish (supposed to function in hearing)

Definitions

  1. A translucent, triangular area behind the opercle of some fish (supposed to function in hearing)

Ancestry of “pseudotympanum”, step by step

pseudotympanum 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 tympanum

StepLanguageWordMeaning
1EnglishtympanumA triangular space between the sides of a...
2Latintympanumdrum, timbrel, tambour, tambourine
3Ancient Greekτύμπανονdrum, kettledrum; drumstick, staff, cudgel;...
4Ancient Greekτύπτωto beat, strike, smite; to beat, strike oneself
5Proto-Indo-European(s)tewp-to push, to stick
6Proto-Indo-European(s)tew-to push, to hit
Every word from Proto-Indo-European -osEvery word from Ancient Greek -ήςEvery word from English pseudo-