Why this word is great
SUPERAGER — [Noun] Someone with an advanced biological age who still retains the cognitive function of a younger person. From super- ("above, beyond") + ager ("one who ages"). Unlike "centenarian" (which marks time survived, not sharpness of mind) or "healthy ager" (which prizes the body over the brain), a superager defies the expected decay of synapses. It is the 85-year-old who still solves crosswords in ink, the grandmother who recalls the exact shade of her childhood bedroom walls, the retired professor whose wit lands like a scalpel—proof that while time may weather the flesh, the mind can remain uneroded, a lighthouse standing firm against the tide.