dishearten
Concise Oxford English Dictionary © 2008 Oxford University Press:
dishearten/dɪsˈhɑːtn/
▶verb cause to lose determination or confidence.
– derivatives
disheartening adjective,
dishearteningly adverb,
disheartenment noun.
disheartening adjective,
dishearteningly adverb,
disheartenment noun.
'dishearten' also found in these Oxford entries:

