'aphasiology' originates from Greek-derived elements, specifically from 'aphasia' + the suffix '-logy', where 'a-' meant 'without' and 'phasis' (phasis) meant 'speech', and 'logia' meant 'study' or 'discourse'.

'aphasia' entered modern terminology from Greek ἀφασία (aphasia) via scientific/medical Latin and French influence into English, and later the English compound 'aphasiology' was formed by adding the suffix '-logy' (from Greek 'logia') to refer to the study of that condition.

Initially, the root referred literally to 'absence or loss of speech', but over time the compound term came to mean the systematic scientific and clinical study of language disorders (not only literal absence of speech).