penetrar
/peneˈtɾaɾ/ · B2 · verb
to penetrate
🚪➡️ pene-TRAR = pene (inside) + trar (to pass) — to pass into
Spanish penetrar comes from Latin penetrare, built on penitus, meaning deep within. Link the sound pene-TRAR to the English cousin penetrate: both mean to go deep into something, passing through its surface.