dekû - to raise, to move (AHw 166, CAD D 123)

No etymology can be suggested. If the Sargonic spelling (preserved in OB copy) id-ke₂-as₂-su-nu-ma is taken at face value, the underlying third guttural must be *ḥ (сf. Kouwenberg 2010, 573), but no suitable Semitic parallel could be detected.