tumour

From Middle English tumour, from Old French tumour, from Latin tumor (“swelling”), from tumeō (“bulge, swell”, verb), from Proto-Indo-European *tewh₂- (“to swell”). Related to English thumb.

tumour (plural tumours)

1. (oncology, pathology) Alternative spelling of tumor

Tumour is the favoured spelling throughout the English-speaking world with the exception of the United States, where tumor is standard.

From Old French tumour, from Latin tumor.

• IPA^(key): /ˈtiu̯mur/, /tiu̯ˈmuːr/

tumour (plural tumours) (Late Middle English)

1. tumour (abnormal or morbid bodily growth)
2. The growth of tumours or boils.

• English: tumour, tumor

• “tumǒur, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 2018-08-30.

• tumeur

Borrowed from Latin tumor.

tumour oblique singular, f (oblique plural tumours, nominative singular tumour, nominative plural tumours)

1. tumor (abnormal swelling of an animal's living tissue)
   • 1288, Somme Me Gautier

     Tumour ou enflour

     (please add an English translation of this quotation)

• French: tumeur
• → Middle English: tumour
  • English: tumour, tumor