'non-aphesis' originates from English, specifically by combining the negative prefix 'non-' (from Latin 'non', meaning 'not') and the noun 'aphesis' (from Greek 'aphesis', meaning 'a letting go' or 'omission').

'aphesis' comes from Greek 'aphesis' (ἀφῆσις) and entered English via Late Latin/Medieval Latin with the linguistic sense 'loss or omission of an initial vowel'. The compound 'non-aphesis' is a modern English formation created by prefixing the productive negator 'non-' to 'aphesis'.

Initially, 'aphesis' in Greek meant 'a letting go' or 'release'; in linguistics it came to mean specifically 'omission or loss of an initial vowel'. 'Non-aphesis' therefore developed to denote the absence of that loss.