battledoor
battledoor ({not transcribed}) , noun
[Old English batyldour. A corrupted form of uncertain origin; compare Sp. batallador a great combatant, he who has fought many battles, Portuguese batalhador, Pr. batalhador, warrior, soldier, from Latin battalia; or compare Pr. batedor batlet, from batre to beat, from Latin batuere. See Battle, n.]
1.
An instrument, with a handle and a flat part covered with parchment or crossed with catgut, used to strike a shuttlecock in play; also, the play of battledoor and shuttlecock.
2.
A child's hornbook. [Obsolete] — Halliwell