Arastre or Arrastre: How To spell?

The word Arastre is misspelled against Arrastre, a noun meaning "A rude apparatus for pulverizing ores, esp. those containing free gold."

Arrastre has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings a & astre which should not be misspelled with single 'R'
Wrong Spelling:  a-r-astre 
Correct Spelling:  a-rr-astre 
Explore spell check of Arrastre to spell without errors.

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