'urease-suppressing' originates from modern scientific English, specifically the combination of the enzyme name 'urease' and the present-participle form of the verb 'suppress'. 'urease' itself is formed from 'urea' + the enzyme-forming suffix '-ase', and 'suppress' comes from Latin roots.

'urease' was coined in the late 19th to early 20th century by combining 'urea' and the suffix '-ase' used to name enzymes; 'suppress' comes from Latin 'supprimere' (to press down) via Old French and Middle English, and the modern English verb 'suppress' developed from these earlier forms. The compound 'urease-suppressing' arose in modern technical contexts by joining the enzyme name and an -ing participle to describe an inhibitory property.

Initially, its components had separate meanings ('urea' = the compound urea; '-ase' = enzyme-forming suffix; 'suppress' = press down or inhibit). Combined as 'urease-suppressing', the term specifically came to mean 'inhibiting the enzyme urease' in scientific usage and has maintained that technical sense.