This is the 11136th most frequent Spanish word.
emocionó
"Emocionó" means "moved" or "excited" emotionally.
Here, 'emocionó' is used in its verb form to indicate that the subject ('La historia') caused an emotional reaction in the speaker.
La historia que contó me emocionó profundamente.
The story he told deeply moved me.
In this sentence, 'emocionó' denotes that 'Ella' caused the audience to feel strong emotions due to her speech.
Ella emocionó al público con su discurso inspirador.
She inspired the audience with her inspiring speech.
Here, 'emocionó' describes the emotional impact the movie's ending had on 'nosotros' (us).