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).

PS
*ˀilā/*ˀillā - besides, apart from (Arakelova 2001:27)
Arb. ˀillā may also belong here.