A -

Athole brose - Honey and oatmeal mixed with whisky and water.

Athoot - Without.

Athort - Across, from  one side to the other.

Attercap, ettercap - A spider.  A spiteful or nasty person.

Attery, attry - Grim, stormy, angry, forbidding.  Containing infected matter matter, pus.

Atweel  - Certainly, indeed.

Atweesh - Betwixt, between.

Auld - Old.  "The auld wumman dotes on her family."  "The old woman dotes on her family."

Aumry, amry - A cupboard or pantry.

Auntie Beenie - An old-fashioned looking woman.  "Aye, she thinks she's a' the fashion but she's jist an Auntie Beenie."  "Yes, she thinks she's all
the fashion but she's just an old-fashioned woman."  

Austern - Austere.

Awa' - Away.  "He's awa' with the fairies."  "He's away with the fairies."  A phrase used to describe someone who is drunk, or mentally vacant.

Awald, avald, yaval - Grain grown for the second year on the same land. 

Awe, ave - A floatboard on a water-wheel. To own, possess or owe.

Awfu', awfa, awfy, yafu - Awful, shocking, difficult, extremely, a great number of.  "He's in an awfu' state because he cannae find his keys."  "He's in an awful state because he can't find his keys." 

Ay, aye, ey - Yes.  Always, continually, at all times, still, all the same.  "Aye, she's aye the same."  "Yes, she's always the same."

Aynd - Breath.