Verb
lose heart (third-person singular simple present loses heart, present participle losing heart, simple past and past participle lost heart)
To despair; to experience reduced morale.
When you are attacked by people's envy or betrayal from a friend, do not lose heart and do not harbor evil in your heart, but say: 'I entrust all this to Your righteous judgment, Lord!' Nikolaj Velimirovic
Never lose heart while pursuing the path of trust. Live a principled life. Basava
From one moment to another one can lose heart. Patrick Modiano
I began to lose heart. The appalling desert of darkness and barren fire, the huge emptiness so sparsely pricked with scintillations, the colossal futility of the whole universe, hideously oppressed me. Olaf Stapledon
Toil on, son, and do not lose heart or hope. Let nothing you dismay. You are not utterly forsaken. I, too, am here--here in the darkness waiting, here attentive, here approving of your labor and your dream. Thomas Wolfe
Never lose heart because whatever is hot must in the end turn cold. African Proverb