Abacus

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Across
  1. 3. Forced it out of use (plural)
  2. 6. Japanese version of abacus
  3. 7. Probable place of origin
Down
  1. 1. Probable time of origin
  2. 2. Can be used for ____
  3. 4. A component of the abacus (plural)
  4. 5. "Abacus" is a ____ word (language)