Words

Amharic
aggəre, aggər - large shield which protects the entire body (AED 1324)
Amharic
aggʷat - whey (AED 1328, Guidi 504)
Amharic
əgziˀ - lord, master (AED 1330)
borrowed from Gəʕəz
Amharic
akkäkä - to have an itch, to scratch o.s. with the nails (AED 1265)
Amharic
aḳḳabi - custodian (AED 1185)
Likely derived from this nominal root. However this and other derivatives may be loans from Gez.
Amharic
aḳḳʷärä - to collect (AED 1185)
Amharic
allä - to be (AED 1098)
Amharic
alä - to say (AED 1094)
Amharic
alä - without, except, other than, not, un- (AED 1101)
Appleyard (1977:60) assumes the development *bälä > älä, which is hardly probable (it would be difficult to explain the loss of b- in that case, see EDG 37 and Arakelova 2001:28).
Amharic
alläbä - to milk (AED 1108)