How do you spell Abacus?
Correct spelling
abacus
Think 'ab-a-cus' - Greek abax becomes abacus with standard Latin ending
Why is abacus spelled this way?
From Greek abax, a counting board. The abacus predates written numerals by centuries — it was the original calculator, a frame of sliding beads that turned abstract numbers into something tangible.
Common misspellings of abacus
abicusabbacusabakus
Example
The mathematics teacher demonstrated addition using a wooden abacus with colorful beads.