Baretti: A dictionary of the English and Italian languages
Tremáre, v. a. & n.
1. to tremble, quake, shake, or shiver. Io tremo di paura, I tremble or quake for fear. Tremare di freddo, to quake with cold, shiver. Gli trema la mano, his hand shakes; 2. to tremble, quake, fear, be afraid.Far —, to cause a trembling, to make tremble. Le sue armi fan — tutta l'Europa, his arms make all Europe tremble. — a verga or foglia,to tremble excessively.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
tremare: to tremble, to shake, to quiuer, to shiuer, to chill, to chatter, or quake through colde or feare. Also to qua- uer or warble with the voice.