IPA: /ˌsɛntɪˈmɛnˌtælɪti/
KK: /sɛntəˈmɛntəlɪti/
The quality of being overly emotional or nostalgic, often in a way that is exaggerated or insincere.
Her sentimentality often made her cry during movies, even if they weren't very sad.
Sentimentality → It is formed from "sentiment" (from Latin "sentire", meaning to feel) and the suffix "-ality" (meaning the state or condition of). The word "sentimentality" refers to the state of being overly emotional or sentimental.
Think of 'feeling' ('sentire') to remember that 'sentimentality' means being in a state of strong emotions.