ameliorate
verb /əˈmiːliəreɪt/
  /əˈmiːliəreɪt/
 (formal)Verb Forms
| present simple I / you / we / they ameliorate |  /əˈmiːliəreɪt/  /əˈmiːliəreɪt/ | 
| he / she / it ameliorates |  /əˈmiːliəreɪts/  /əˈmiːliəreɪts/ | 
| past simple ameliorated |  /əˈmiːliəreɪtɪd/  /əˈmiːliəreɪtɪd/ | 
| past participle ameliorated |  /əˈmiːliəreɪtɪd/  /əˈmiːliəreɪtɪd/ | 
| -ing form ameliorating |  /əˈmiːliəreɪtɪŋ/  /əˈmiːliəreɪtɪŋ/ | 
- ameliorate something to make better something that was bad or not good enough- Steps have been taken to ameliorate the situation.
- The new laws were designed to ameliorate the problem of chronic debt.
- The side-effects of the treatment can be ameliorated to some extent.
 Oxford Collocations DictionaryAmeliorate is used with these nouns as the object:- condition
- effect
- situation
- …
 Word Originmid 18th cent.: alteration of meliorate (of the same meaning), influenced by French améliorer, from meilleur ‘better’.