the.com/individual
The indivisible unit that spends its whole life dividing itself into roles.
means A single distinct person or thing, considered separately from any group.
from From Latin individuus, undivided — in (not) plus dividuus (divisible); literally the thing you cannot split.
Original senseMeant inseparable, like the Holy Trinity, not separate.
Meaning flipCame to mean one, distinct, set apart instead.
Math echoAtom shares the same not-divisible logic.