Obs. [Origin of name obscure; in quot. 1703 referred to obs. F. travers crosse, crosse-wise, thwart, ouerthwart, ill-placed, out of order (Cotgr.).] See quots.
1703. T. N., City & C. Purchaser, 273. Travers. These Tyles are (by our common Bricklayers) calld Travis, or Travas Tyles; but I suppose it should rather be Travers Tyles; for the word Travers is perfect French, signifying Irregularity; these Travers Tyles are irregular plain Tyles, viz. Such as have the Pin-holes broken out, or one of the lower Corners broken off.
1725. Bradleys Fam. Dict., s.v. Tiles, Travers, which they lay with the broken Ends upwards upon Rafters where pinnd Tyles cannot hang.
172741. Chambers, Cycl., s.v. Tyle, Traverse Tyles.