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.