cancerous

the word 'cancerous' is a modern english formation built upon the latin noun 'cancer,' which originally meant "crab." this unusual semantic link originates in ancient greek medicine, where physicians like hippocrates likened the swollen veins around a tumor to the legs of a crab. the latin term was adopted directly into english to name the disease. the suffix '-ous,' of latin origin, was then appended to create the adjective, literally meaning "characterized by or full of cancer," a pattern common in english for forming descriptive terms from nouns of condition or substance.

Structure: cancer (crab, malignant tumor) + ous (adjective-forming suffix) cancer: from latin cancer meaning "crab, malignant tumor." in this word, it functions as the core root conveying the sense of a malignant growth. ous: from latin -osus, an adjective-forming suffix meaning "full of, characterized by, having the qualities of." it functions to convert the noun into an adjective.