Where does “tumour” come from?

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

tumour (Middle English): tumour; The growth of tumours or boils

Definitions

  1. tumour; The growth of tumours or boils

Ancestry of “tumour”, step by step

StepLanguageWordMeaning
1Old Frenchtumourtumor
2LatintumorThe state of being swollen; A swelling, tumor;...
3Latin-orused to form a third-declension masculine...
4Proto-Italic-ōsCreates masculine action nouns or result nouns...
5Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
6Proto-Indo-European-oss
7Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

Words derived from “tumour

Every word from Proto-Indo-European -osEvery word from Latin -orEvery word from Latin tumor
tumour — Etymology, Origin & Word History | Etymology Explorer