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ar¹

(är)

Variant of are².

ar²

(är)

The letter r.

[Middle English arre, from Late Latin er.]

The symbol for argon.

-ar

suff.

Of, relating to, or resembling: polar.

[Middle English, from Old French -er, from Latin -āris, variant of -ālis, -al.]

Ar.

abbr.

Arabic

abbr.

1. accounts receivable

2. Arkansas

3. army regulation

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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