This word is acceptable for play in the UK dictionary that is being used in the following games:

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n. An old dance with swords and bucklers.

n. An old dance with swords and bucklers; a sword dance.

n. A participant in an old comic dance performed by maskers in mock-military guise, originally with sword and buckler, and later with a wooden sword or some other sham weapon; also, the dance itself, and the kind of mask or domino worn in it. The dance became a mere display of tumbling or acrobatic feats.

"The fact that matachin is also a perfectly good Spanish word meaning “butcher” or “hired assassin,” and that the place had been called that long before the railroad came through, did not seem to matter."

to dance a matachin   

machin    matching