Italian word collo comes from Proto-Indo-European *kʷekʷléh₂

Detailed word origin of collo

Dictionary entry	Language	Definition
*kʷekʷléh₂	Proto-Indo-European (ine-pro)
collum	Latin (lat)	(anatomy) neck, throat. (symbolically) servitude. Upper stem of a plant.
collo	Italian (ita)	(anatomy) neck, cervix. Collar. Neck (all senses). Parcel, package; luggage (especially when bulky).