ticking (n.)youdaoicibaDictYouDict[ticking 词源字典]
"cloth covering (usually of strong cotton or linen) for mattresses or pillows," 1640s, from tyke (modern tick) with the same meaning (mid-14c.), probably from Middle Dutch tike, from a West Germanic borrowing of Latin theca "case," from Greek theke "a case, box, cover, sheath" (see theco-).[ticking etymology, ticking origin, 英语词源]