Lewis Short
tÄgillum (noun N) : dim.tignum.
* A small piece of wood: clamat suam rem perisse ... de suo tigillo fumus si qua exit foras,i. e. if the least bit of wood is burned in his house,Plaut. Aul. 2, 4, 21.
* Esp., a little beam, Liv. 1, 26, 13; Cat. 67, 39; Tib. 2, 1, 39; Phaedr. 1, 2, 14; Juv. 7, 46; App. M. 1, p. 109.
* Sororium Tigillum; v. sororius, II.
Charlton T. Lewis, Charles Short, A Latin Dictionary