This is the 2299th most frequent Spanish word.
prometió
"Prometió" means "he/she/it promised."
The usage here is in the preterite tense, indicating a past action where the subject made a commitment to perform the stated activity.
Él prometió estudiar más para el examen.
He promised to study more for the exam.
This sentence uses 'prometió' to express a past promise made by the subject concerning a future occurrence or action.
Ella nos prometió que traería pastel a la fiesta.
She promised us that she would bring cake to the party.
In this context, 'prometió' conveys a solemn commitment made by Juan regarding his behavior consistently in the future.