atemporal comes from a- ('without') + temporal, the latter from Latin temporalis ('of time'), from tempus, temporis ('time'). 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 adjective sense is "existing outside of or unaffected by the passage of time", 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 temporal, temporary, tempo and derivatives such as atemporally, atemporality, showing how the same base continues to support neighboring English vocabulary. The principal historical forms in the chain include Latin temporalis, Latin tempus, Ancient Greek a-, which anchor the explanation in named linguistic material.