The core idea of this root was:
going in a direction, heading
It’s the origin of to send which is essentially “make go in a direction”, but arguably the more interesting branch is the one around sense, sensible and the German der Sinn, which evolved from the idea of mentally going in a direction.
Other words that also belong here:
- consent, consensus (“having the same mental direction”)
- dissent (“going in a different direction”)
- resent (“going in a bad direction”)