1) A cylindrical pin of hard wood used in fastening timbers together.
Those which were provided for the repairs to Bridlington pier in 1717 were 18 inches long and cost 40s per thousand: 1441-2 ‘And for clavis ligneis, 2d’, Selby
1526 Item for a leyge and trenaylles, jd. ob, York
1678 3000 trenalds besides props and wedges, Selby
1699 To pilling without Each apron … to timber groveing driveing & trenayles to Boath, Naburn Lock
1715 working for us in riving laths and tree nails, Maltby
1717 For Plank and Trenails from London, Ł101 8s 4d, Bridlington.