Damnum absque injuria, means if the law gives no remedy, there is 'damnum absque injuria' or damage without the right to recompense, Halsbury's Laws of England 12(1), para 802, p. 264.
Damnum absque injuri', [a loss without a wrongful act). Loss without such injury as would give rise to an action for damages against the offending party. This is not actionable. Damnum sine injuri' esse potest, Lofft, 112. Thus, if I have a mill, and a neighbour builds another mill upon his own land, per quod the profit of my mill is diminished, yet no action lies against him, for every one may lawfully erect a mill upon his own ground; though if I have a mill by prescription on my own land, and another erects a new mill, which draws away some portion of the stream from mine, so as to diminish its former power, an action of trespass on the case will lie against him; and if I build a house on the edge of my lands, my neighbour may at any time within twenty years block out my light by any erection he pleases, so long as he does not trespass, though his doing so after the twenty years would be actionable by virtue of the Prescription Act. See PRESCRIP-TION and UBI JUS, IBI REMEDIUM.