Baretti: A dictionary of the English and Italian languages
Coltéll-o, s. m. dim. Coltéll-accíno, Coltéll-étto, Coltéll-íno, disp.Coltéll-áccio , aug. Coltéll-óne,
1. a knife. — a due tagli, a two-edged knife. — di caccia, a hanger. — di tasca, a clasp or pocket knife; 2. poniard, stiletto, dagger. Dar del —, to stab. A tal — tal guaina, like to like; 3. severe affliction;4. small branch of the palm-tree; 5. the large feathers in the wings of birds. Per —, edgewise, upright.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
coltello: a knife, a culter, a whittle. Also vsed for any cutting weapon.