1) Fairy chess piece 
[chess] A dabbaba (or dabaaba, dabbabah) is a fairy chess piece that jumps two squares orthogonally (the directions a chess rook can move), leaping over any intermediate piece. Below, it is given the symbol D. ==History and nomenclature== The dabbaba is a very old piece, appearing in some very early chess variants, such as Tamerlane chess. ... Dabbāba (Arabic دَبَّابَة) can mean: ...