latchet

from WordNet (r) 3.0 (2006)

latchet
    n 1: a leather strap or thong used to attach a sandal or shoe to
         the foot

from The Collaborative International Dictionary of English v.0.48

Latchet \Latch"et\, n. [OE. lachet, from an OF. dialect form of
   F. lacet plaited string, lace dim. of lacs. See {Lace}.]
   The string that fastens a shoe; a shoestring.
   [1913 Webster]

from Easton's 1897 Bible Dictionary

Latchet
a thong (Acts 22:25), cord, or strap fastening the sandal on the
foot (Isa. 5:27; Mark 1:7; Luke 3:16).

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