Where does “pseudotumour” come from?

pseudotumour (English) comes from English tumour, from Middle English tumour, from Old French tumour, from Latin tumor, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs, from Proto-Indo-European -oss — Creates action nouns or result nouns from verbs;...

pseudotumour (English): Alternative spelling of pseudotumor

Definitions

  1. Alternative spelling of pseudotumor

Ancestry of “pseudotumour”, step by step

pseudotumour traces back through two separate lines of ancestry.

via English tumour

StepLanguageWordMeaning
1EnglishtumourAn abnormal growth; differential diagnosis...
2Middle Englishtumourtumour; The growth of tumours or boils
3Old Frenchtumourtumor
4LatintumorThe state of being swollen; A swelling, tumor;...
5Latin-orused to form a third-declension masculine...
6Proto-Italic-ōsCreates masculine action nouns or result nouns...
7Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
8Proto-Indo-European-oss
9Proto-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 Greek-ήςadjective suffix
5Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
6Proto-Indo-European-sDerives nouns from roots
Every word from Proto-Indo-European -osEvery word from Latin -orEvery word from Latin tumor