apophthegm comes from Greek apophthegma ('a terse, pointed saying'), from apophthengesthai ('to speak one's opinion plainly'), from apo- ('forth') + phthengesthai ('to utter'). Morphologically, the word is transparent as a compound: its parts remain visible in the modern spelling, while the older history of those parts supplies the deeper ancestry. In modern use, the noun sense is "a terse, pointed saying; a pithy maxim", which keeps the etymology connected to the word's present dictionary value rather than treating it as a merely historical label. The wider word family includes related English forms such as apothegm, phlegm and derivatives such as apophthegmatic, showing how the same base continues to support neighboring English vocabulary. The principal historical forms in the chain include Ancient Greek apóphthegma, Ancient Greek phthéngesthai, which anchor the explanation in named linguistic material.