thimble
thim.ble \'thim-b*l\ n [ME thymbyl, prob. alter. of OE thy-mel thumbstall, fr. thuB-ma thumb 1: a cap or cover used in sewing to protect the finger when pushing the nee dle 2: a thimble-shaped cup, appendage, or fixture : as 2a: a grooved ring of thin metal used to fit in a spliced loop in a rope as protection from chafing 2b: a fixed or movable ring, tube, or lining in a hole