Baretti: A dictionary of the English and Italian languages
Tardáre, v. n.
1. to tarry, stay, put off, delay, linger out the time. Questo oriuolo tarda, this watch goes slow; 2. to retard, hinder, stop, keep or put off, delay. Il giorno comincia a —, it draws towards night, the night approaches, it grows late; 3. to long, be impatient.Oh quanto tarda a me ch'il Tale quì giunga!how I long to see Mr. So and So arrive!
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
tardare: to retarde, to delay, to slow, to linger, to tarie, to demur, to stay. Also to defer or hinder. Also to keepe backe or withold.