Is it ensure, insure, or assure?
1560s, from Middle French turbant, from Italian turbante (Old Italian tolipante), from Turkish tülbent "gauze, muslin, tulle," from Persian dulband "turban." The change of -l- to -r- may have taken place in Portuguese India and thence been picked up in other European languages. A men's headdress in Muslim lands, it was popular in Europe and America c.1776-1800 as a ladies' fashion.
a headdress, of obscure Oriental origin, consisting of a long scarf wound round the head or an inner hat.