Akkadian

duḳḳuḳu - D. to pulverize, to crash (AHw. 162, CAD D 190)

diḳḳu ‘small, meagre’ (CAD D 159 (only in PNs); CDA 60), duḳḳatu ‘powder’ (CAD D 190, hapax), daḳḳu ‘crashed, smalľ (AHw. 162, CAD D 107), daḳḳatu ‘smal amount’ (CAD D 107) and other words attested in lexical lists.

PS
*dḳḳ - to crush, to pound; to be ground finely, to be fine, minute (EDA II)

For the frequent in individual Semitic languages semantic shift ‘to be ground finely, to be fine, minute’ > ‘to be little, smalľ in Indo-European languages see Buck 1949, 880ff.