Baretti: A dictionary of the English and Italian languages
Agiát-o, adj. sup. Agiát-íssimo, dim. Agiát-éllo; well off, in easy circumstances, comfortable. Male —,badly off;
2. large, ample (said of clothes);3. fit for, adapted for, appropriate; 4. aged, old; 5. slow, tardy, lazy; 6. commodious, convenient. Casa agiata, a commodious house;adv. Agiát-aménte, sup. Agiát-issimaménte.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
agiato: eased, setled comodiously. Also able to liue, or wealthie. Also aged.