'apothegmatically' originates from English, specifically the adjective 'apothegmatic', where 'apothegmatic' ultimately derives from Late Latin 'apophthegma' and Greek 'apophthēgma', in which 'apo-' meant 'away' and 'phthēgma' meant 'spoken utterance'.

'apothegmatically' evolved from the adjective 'apothegmatic' (formed in English from the noun 'apothegm'), and that noun came into English via Medieval Latin 'apophthegma' from Greek 'apophthēgma'; over time the noun produced the adjective 'apothegmatic' and then the adverb 'apothegmatically'.

Initially it referred to a 'pithy saying' (the noun); later the adjective meant 'like an apothegm', and the adverb came to mean 'in a concise, aphoristic manner'.