The Collaborative International Dictionary of English v.0.48:

mandil \man"dil\ (m[a^]n"d[i^]l), n. [OF. mandil; cf. Sp. & Pg.
   mandil a coarse apron, a haircloth; all from Ar. mandil
   tablecloth, handkerchief, mantle, fr. LGr. mandh`lion, fr. L.
   mantile, mantele. See Mantle.]
   A loose outer garment worn the 16th and 17th centuries.
   [1913 Webster]