'monofunctionality' originates from Greek and Latin elements: the prefix 'mono-' from Greek 'monos' meaning 'single', combined with 'function' from Latin 'functio' (from 'fungi') meaning 'performance' or 'execution', plus the English noun-forming suffix '-ality'.

'mono-' (Greek 'monos') and Latin 'functio' passed into English as 'function'; the abstract noun 'functionality' was formed in English by adding '-ality' to 'function', and the compound 'monofunctionality' was created by prefixing 'mono-' to 'functionality' to denote a single-function property.

Initially the roots conveyed 'single' and 'performance/execution'; over time the combined term evolved to mean specifically 'the condition of having only one function' in modern technical and descriptive usage.