plait 
(plāt, plăt)
(plāt, plăt)n.
1. A braid, especially of hair.
2. A pleat.
tr.v. plait·ed, plait·ing, plaits
1. To braid.
2. To pleat.
3. To make by braiding.
[Middle English pleit, fold, braid, possibly from pleiten, to fold, braid, alteration (influenced by Old French pleit, fold) of Old French plier, pleiir, from Latin plicāre, to fold; see plek- in the Appendix of Indo-European roots.]
plaiter n.