the.com/joining
The moment two separate things agree to stop being two separate things.
means The act of connecting, uniting, or becoming a member of something larger than yourself.
from From Latin iungere, to yoke — the same root as junction and conjugal, all about strapping things together so they pull as one.
Ox cousinShares its root with yoke and junction.
CarpentryA joiner makes furniture by joining wood, not nails.
GrammarConjunctions are professional joiners of clauses.