Baretti: A dictionary of the English and Italian languages
Propósito, s. m.
1. purpose, design, resolution.Cambiar —, to change one's mind or resolution. Con —, intentionally; 2. discourse, subject, talk. Fuor di —, improperly, unseasonably, preposterously. Essere il —, to suit, fit, agree well. Tener —, to discourse. A —, to the purpose, opportunely, aptly.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
proposito: a purpose, an intent, a meaning, a deliberation. Also any subiect spoken of.