loket

▪ I. † loˈket Obs. rare^—1.
    [Of obscure origin.
    If the sense be ‘lappet’, the word might be a dim. of F. loque rag, though this has not been found earlier than the 15th c. (Cotgr. 1611 has loquette). A dim. of lock n.¹ would yield an admissible sense, but a hybrid formation of this kind would be unusual at so early a period. It is not easy to see how the word can be identified with locket.]
    ? Some part of a head-dress, ? a lappet; or ? a lovelock, curl.

Oxford English Dictionary