I make my ingredients list using the "what goes in the pot" method. And lard is ... well ... lard.
I've never had anyone complain -- most people are far more interested in the fragrance than the ingredients list. And those who do read the list are usually interested in whether the soap contains animal products of any sort.
The INCI name for lard is adeps suillus. But no one will remotely have a clue what that means. And in all fairness, you'd have to use INCI nomenclature for everything if you use this for lard.