Where does “-tum-” come from?

-tum- (English) comes from English tumor, 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;...

-tum- (English): a monoclonal antibody that targets a tumor not...

Definitions

  1. a monoclonal antibody that targets a tumor not...

Ancestry of “-tum-”, step by step

StepLanguageWordMeaning
1EnglishtumorAn 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;...

Words derived from “-tum-

Every word from Proto-Indo-European -osEvery word from Latin -orEvery word from Latin tumor