IPA: /dɪsˈhɑːrtənmənt/
KK: /dɪsˈhɑːrtənmənt/
The feeling of losing hope or confidence; a state of sadness or disappointment.
After hearing the bad news, she felt a deep sense of disheartenment.
Disheartenment → It is formed from "dis-" (meaning apart or away) and "hearten" (from Old English "heorþian", meaning to encourage or give heart). The suffix "-ment" (meaning the action or result of) indicates the state of being without heart or encouragement. Thus, disheartenment refers to the state of being deprived of hope or confidence.
Think of being 'away from' ('dis-') encouragement or 'heart' ('hearten') — that's why disheartenment means losing hope or confidence.