abandonment of right

For instance, the failure to prosecute the work on the tunnel for six months is considered the abandonment of rights to all the undiscovered veins on the line of the tunnels.

To the suppression of tythes the Abbe Sieyes was vehemently opposed; but his learned and logical arguments were unheeded, and his estimation lessened by a contrast of his egoism (for he was beneficed on them) with the generous abandonment of rights by the other members of the assembly.