WordWeb Online

1. Make (someone or something) sentimental or imbue with sentimental qualities
   "Too much poetry sentimentalises the mind"; "These experiences have sentimentalised her";
   - sentimentalize
    
2. Look at with sentimentality or turn into an object of sentiment
   "Don't sentimentalise the past events";
   - sentimentalize
    
3. Act in a sentimental way or indulge in sentimental thoughts or expression
   - sentimentalize, sentimentize, sentimentise [Brit]

Derived forms: sentimentalised, sentimentalises, sentimentalising

Type of: act, alter, behave, belie, change, do, misrepresent, modify