ulcerate /ˈʌlsəreɪt 
/ ▸ verb [no object] develop into or become affected by an ulcer: a small vesicle which ulcerates and spreads
(ulcerated as adjective) his ulcerated leg.
– DERIVATIVES ulcerative /ˈʌls(ə)rətɪv / adjective – ORIGIN late Middle English: from Latin ulcerat- ‘made ulcerous’, from the verb ulcerare.
EnglishOxford Dictionary of English
