'aponeurorrhaphy' originates from Greek (via New Latin), specifically the elements 'apo-' + 'neuron' + 'rhaphē', where 'apo-' meant 'away/from', 'neuron' meant 'sinew/tendon', and 'rhaphē' meant 'suture'.

'aponeurorrhaphy' was formed in medical New Latin by combining 'aponeurosis' (from Greek 'apo-' + 'neuron') with the suffix '-rrhaphy' (from Greek 'rhaphē'), and it entered modern English as a technical surgical term meaning the suturing of an aponeurosis.

Initially the Greek elements described 'suturing of a sinew or tendon-like structure'; over time the composed medical term came to be used specifically for 'suturing of an aponeurosis' in surgical contexts.