ar-

ar-

var. of ad- before r: arrear.

-ar¹

,

var. of -al¹, joined to words in which an l precedes the suffix: circular; lunar; singular.

[< Latin -āris; replacing Middle English -er < Anglo-French, Old French < Latin -āris]

-ar²

,

var. of -er², often under the influence of a spelling with -ar- in a cognate Latin noun: cellar; collar; poplar; scholar; vicar.

-ar³

,

var. of -er¹ on the model of -ar², used in the formation of nouns of agency: beggar; liar.

AR

1. Arkansas.

2. army regulation.

Ar

Arabic.

Ar

Chem. Symbol.

argon.

ar.

1. arrival.

2. arrive; arrives.

A/R

accounts receivable.

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.