# Arithmetic definition

The increase in the food supply is arithmetic.

An example of arithmetic is adding two and two together to make four.

Her *arithmetic* is poor.

Arithmetic progression.

## Other Word Forms

### Noun

## Origin of arithmetic

- Middle English
*arsmetike**from*Old French*arismetique**from*Medieval Latin*arismetica**alteration of*Latin*arithmētica**from*Greek*arithmētikē (tekhnē)**(art) of counting**feminine of**arithmētikos**from**arithmein**to count**from**arithmos**number*ar- in Indo-European roots### From American Heritage Dictionary of the English Language, 5th Edition

- From Middle English
*arsmetike*, from Old French*arismetique*, from Latin*arithmetica*, from Ancient Greek*ἀριθμητική*(arithmētikē, “counting”) (*τέχνη*(tekhnē, “art”)), from*ἀριθμός*(arithmos, “number”). Used in English since 13th Century.### From Wiktionary