Bisharp

Bisharp looks and acts similar to a traditional Japanese bandit—specifically a leader—with features resembling samurai armor, while its behaviour and bipedal appearance are reminiscent of a soldier. It may also originate from kaijin, humanoid villains found in Japanese monster movies. Just like its pre-evolved form, Bisharp may also draw some inspirations from a chess piece (in this case, a bishop).

Name origin
Bisharp is a combination of bishop (a piece in chess) and sharp (describing its metal blades). Akin to Pawniard evolving into Bisharp, a pawn in chess can be promoted into a bishop piece (among other chess piece classes) if it reaches the opponent's side of the board. It may also involve to bisect (to cut or split into two), referring to Bisharp's cutting abilities. Its name could also refer to the twin blades on its torso (derived from the numerical prefix bi-, meaning "two" in Latin).

Kirikizan may be a combination of 切り刻む kirikizamu (to mince) and 斬 zan (to cut or slay)