The word 'ziggurat' entered English in the late 19th century from the Assyrian Akkadian word 'ziqqurratu', meaning 'pinnacle' or 'mountain top'. This Akkadian term is derived from the verb 'zaqāru', meaning 'to be high' or 'to build high'. The structure itself, a massive terraced pyramid of successively receding stories, was designed as a cosmic mountain, a link between heaven and earth, which directly reflects the meaning of its original name. Thus, the modern English term preserves both the ancient form and the core concept of a towering, sacred structure.

This word is a direct loanword from Akkadian via other languages. It is not productively formed from separable English morphemes and is therefore treated as a simplex unit.