[f. prec. adj.]
trans. To make callous, to harden. lit. and fig. Only in pple. (and ppl. adj.) Calloused, hardened.
1834. Fraser’s Mag., X. 658. The whole English mind calloused against its efforts to make an impression.
1852. Mrs. Stowe, Uncle Tom’s C., II. xx. 36. On the back and shoulders of the child, great welts and calloused spots, ineffaceable marks of the system under which she had grown up thus far.
1880. Ellen H. Rollins (‘E. H. Arr’), New Engl. Bygones, 108. Hands calloused by toil.
