[Ir. caipín dim. of cap; or ? dim. of Ir. cába cap, head-covering.] An Irish hat.
18314. Lover, Leg. & Stories, 306. Pull off your caubeen and sit down.
1859. F. Mahoney, Rel. Father Prout, 73. A huge black crape round his caubeen.
1877. A. M. Sullivan, New Irel., I. xi. 269. There are English men and women who think all Irishmen wear caubeens, with pipes stuck in the rim.