Rob (?), n. [F.; cf. Sp. rob, It. rob, robbo, Pg. robe, arrobe, Ar. rubb, robb, Per. rub.] The inspissated juice of ripe fruit, obtained by evaporation of the juice over a fire till it acquires the consistence of a sirup. It is sometimes mixed with honey or sugar. [Written also rhob, and rohob.]
[1913 Webster]

Rob, v. i. To take that which belongs to another, without right or permission, esp. by violence.
[1913 Webster]

I am accursed to rob in that thief's company. Shak.
[1913 Webster]