Baretti: A dictionary of the English and Italian languages
Láb-bro, Láb-ro, s. m. pl. bri, bra, bía, dim. Láb-étto,Láb-icciuólo , Láb-úccio, aug. Láb-óne, Láb-ótto,
1. the lip.Avere il cuore sulle labra, to be candid, open.sincere. Con le prime labbra, on the tip of the lips; 2. brim, tip, edge of any vessel. — fesso, a hare-lip; 3. the plant dipsacus fullonum, or fuller's thistle or weed.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
labbro: a lip of any creature. Also the brim or brinke, the tip or edge of any thing, as of a fountaine, a cup or drinking pot.