It is prohibited that any one should do in his own concern, what may be hurtful to another person.
Propinquior excludit propinquium; et propinquus remotum, et remotus remotiorem.
A nearer relation excludes propinquity; and a relation a remote person; and a remote person, one more remote.
Proprium est Regis gratiam delicti facere.
It is the prerogative of the king to pardon a transgression.
Proprietates verborum servandæ sunt.
The proprieties of words are to be observed.
Protectio trahit subjectionem, et subjectio protectionem.
Protection draws along with it subjection, and subjection protection.
Proximus sum egomet mihi.