Where does “abacus” come from?

abacus (Middle English) comes from Latin abacus, from Ancient Greek ἄβαξ, from Hebrew אבק — dust; hint of; A hole in cloth for the insertion...

Ancestry of “abacus”, step by step

Step	Language	Word	Meaning
1	Latin	abacus	a square board; sideboard; counting board, abacus
2	Ancient Greek	ἄβαξ	board, slab; reckoning board, abacus
3	Hebrew	אבק	dust; hint of; A hole in cloth for the insertion...

abacus — Etymology, Origin & Word History | Etymology Explorer